PD 2 Physics: Forces and Laws of Motion: Please Answer The Following Questions: by Thomas E Clark https://padlet.com/tec430/7xe2y3jfcr7l (1) What is a Force and how does it relate to velocity, displacement and acceleration? (2) What is the SI unit for force? and the smaller, sub-units associated with it? (3) Provide examples of force diagrams where is an object has a net force of zero and not zero? (4) What is Inertia and how is mass a measure of Inertia? (5) Who was Issac Newton , when did he live and what was his background? (6) What are Newton's First Law, Second Law and Third Laws? (7) What is Equilibrium (8) A 2200 g book is pushed with a net force of 1.6 N , what is the acceleration acting on the book (show work)? (9) A soccer ball is kicked with a force of 13.5 N and accelerations at 6.5 m/s2. What is the mass of the ball? (10)Why do forces always act in pairs? (11) What is the difference between mass and weight? (12) What is a normal force? (13) Why is frictional force proportional to Normal Force? (14) Explain the kinetic coefficient and static coefficients used in calculating frictional forces? en-us 2017-10-12 15:12:21 UTC 2017-10-12 19:49:27 UTC hello@padlet.com Caleb & Carlo https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488397 1) Force is mass times acceleration. Force propels an object through space and can change the velocity of an object. 
2) The SI unit for force is Newtons (N) and the smaller sub units are kilogram per meter second.
3) A laptop on a table has force from gravity on it and force from the table which leaves the net force to be zero. An example of a net force greater than zero is a free falling object. 
4) Inertia is tendency for an object to maintain a particular state (at rest or in motion). More mass correlates to resistance to change, i.e. a higher value of inertia
5) Isaac Newton was a physicist and mathematician credited with discovering laws of physics and discovering calculus. He lived in England. He graduated from Trinity college.
6) 1st Law: An object will remain at rest or in motion in a straight line unless acted upon by an outside force. 
2nd Law: Force equals mass times acceleration. 
3rd: Every force an equal or opposite reaction. 
7) A state in which opposing forces are in balance. 
8) 1.6 N / 2.2 kg = .727 m/s^2
9)13.5 N/ 6.5 m/s^2 = 2.08 kg
10)For every action there is an equal or opposite reaction. 
11)Mass is the amount of substance within an item and gravity acts upon that mass to give weight.
12) Normal force is is the force exerted on an object by another stable object i.e. a table acting upon a laptop.
13) Frictional force is proportional to the normal force as fictional force depends on the force exerted when two objects are pressed together.
14) The kinetic coefficient is the force acting upon a moving which changes, while the static coefficient is the force whose value does not change, like gravity.]]> 2017-10-12 15:34:05 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488397 Isabella, Cameron, Vivek https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488714 1)  Force is the push and pull upon and object, resulting from the objects interaction with another object. Force is the change in mass*velocity with respect for time. 
2.)The SI unit for force is a newton, and the smaller subunits associated with it are meters, kilograms, and seconds
3.) An example of a force diagram where the object has a net force of 0 is a child sitting down on a chair and a force diagram where the net force isn’t 0 is when an object enters free fall.
4.) Inertia is the resistance an object has to a change in its state of motion. The greater the mass of an object, the less the object will accelerate by an applied force. 
5.) Isaac Newton was an English mathematician, astronomer, and physician that lived in the 1600s-1700s. Growing up, he lived in Lincolnshire, England and found great education at the University of Cambridge’s Trinity College.
6.) Newton’s first law of motion is every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force and this is the definition of inertia. Newton’s second law of motion states that the velocity of an object changes when it is subjected to an external force and that F = M * A. Newton’s third law of motion states that  every action (force) in nature there is an equal and opposite reaction.
7.)Equilibrium is the state of an object when the net force on said object is zero.
8.) 2200g/1000 = 2.2kg, 1.6N/2.2kg= 0.727 m/s^2
9.)13.5N/6.5 m/s^2 = 2.077kg
10.)According to Newton's third law, for every action force there is an equal (in size) and opposite (in direction) reaction force, thus every force has a pair.
11.) The mass of an object has to do with how much matter an object has, while weight depends on the gravitational pull on an object. As a result, an object will have the same mass on the Earth as the moon, but different weight.
12.)The normal force is the support force exerted upon an object that is in contact with another stable object. This can be vertical and horizontal. 
13.) Experimental observations have shown that the magnitude of the force of friction is approximately proportional to the magnitude of the normal force that a surface exerts on an object. 
14.)The Coefficient of friction is defined as the ratio of force of friction to the normal force, μ = F / N. The force of static friction can be calculated by taking the coefficient of friction between the two surfaces and multiplying it by the normal force that the surface is applying to the object




]]> 2017-10-12 15:34:31 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488714 Tyler & Juli https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488779 1) A force is mass x acceleration. It is indirectly proportional to displacement. Force is proportional to a change in velocity. Force is directly proportional to acceleration.
2) Newtons, (kg x m)/s^2
3) A phone sitting on a table, a phone sliding on a table
4) Inertia is a property of matter that it will remain at rest or in its current state until an outside force acts on it, the more inertia an object has, the more mass an object has
5) Isaac Newton was a physicist who lived from 1643-1727 in England. He was a very well-known scientist who helped discover modern principles of physics. 
6)first law- an object will remain at rest or in constant straight line motion unless acted upon by external force
second law- the acceleration of an object is dependent on mass of object and the net force acting upon the object
third law- for every action, there's an equal, opposite reaction
7)equilibrium is when all the forces acting on an object cancel out and a balanced situation happens
8) 1.6N / 2.2kg = 0.73m/s^2
9) 13.5N / 6.5m/s^2 = 2.08kg
10) Newton's third law states that for every action there is an equal and opposite reaction, therefore each force has to have an opposite force
11) Mass is the amount of matter in an object, while weight is the force of gravity on an object
12) Normal force is the support force acting on an object (ex: the force the table is exerting on an object resting on it to keep the object from falling).
13) Frictional force acts in the opposite direction to normal force, and is therefore proportional to it.
14) Static friction is when a small force is exerted on an object but it does not move due to the friction, while kinematic friction is when the object "breaks free" and moves, but the friction is still acting on the object.]]> 2017-10-12 15:34:37 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488779 Henry B. & Josh C. https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488975 1-A force is mass multiplied by acceleration. Force is proportional to a change in velocity. Force moves an object through space and cause displacement. 
2- Newtons, kilograms-meters-seconds. 
3-  Coin on a table = net force of zero. Coin spinning = net force of not zero.
4-  Inertia is a property of matter which it continues in its existing state or uniformed motion unless that state is changed by an external force. 
5- He was a physicist and mathematician who developed the principles of modern physics including the laws of motion. He lived 1643-1727, and he lived in England.
6- Newton's 1st law:An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force 
Newton's 2nd law: The acceleration of an object is dependent upon two variables 
Newton's 3rd law:For every action there is an equal reaction
7- Equilibrium: Condition in which all influences acting cancel each other, so that a static or balanced situation results
8- 1.6/2.2=.7273
9- 13.5N/6.5m/s^2=2.08
10-Forces act in pairs because for every action there is an equal and opposite reaction
11- Mass stays the same and is the amount of matter in an object, weight is gravity acting upon the mass
12- It is the support force exerted on an object when it is against another object by the object it is on.
13- The same normal force is exerted but the friction can be greater over the a wider area.
14- kinetic coefficient is the force exerted on a moving object, where a static coefficient is unchanging on a moving and a non-moving object. ]]> 2017-10-12 15:34:56 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196488975 Hailey, Angle hfinnecy https://padlet.com/tec430/7xe2y3jfcr7l/wish/196489493 1) Force is a push or pull exerted on an object. It is related to velocity, displacement, and acceleration  because a force is given to move and accelerate an object in a direction.
2) Newton which is made up of one kilogram meter per second squared.
3) Net force of zero: A car not moving
Net force of not zero: A car going 2 mph on the freeway.
4) Inertia is the state in which an object remains motionless until it is changed by an external force.
5) Isaac Newton was a scientist who came up with 3 laws involving inertia, acceleration and pairs of forces.  He lived in England  as a mathematician, astronomer and physicist during 1643-1727.
6) Newton's 1st law: an object in motion will stay in motion unless acted upon and vice versa.
Newton's 2nd law: The acceleration of an object is proportional to the mass of the object
Newton's 3rd law: for every action there is an equal opposite reaction.
7) Equilibrium is when opposing forces are balanced.
8) 1.6N = 2.2kg x a       
 1.6N / 2.2kg = a
 a = .7272
9) 13.9N = m x 6.5m/s2
13.9N / 6.5m/s2 = m
m = 2.1385kg
10) forces act in pairs because for every action their must be a reaction.
11) Mass is the amount of material while weight is the force acted upon the object.
12) A normal force is a force that is always there
13) normal force is perpendicular to the surface while frictional force is parallel to the surface
14) The static coefficient is the force holding objects together while the kinetic coefficients is the amount of force necessary to keep the objects moving together.]]> 2017-10-12 15:35:49 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196489493 Jacalyn Trujillo Joshua Villarin https://padlet.com/tec430/7xe2y3jfcr7l/wish/196490007 1. A force is either a push or pull exerted on an object. It relates to acceleration in a direct relationship, proportional to velocity, and displacement is how far an object was pushed or pulled.
2.The SI unit of Force is Newtons=N
The small, sub units associated with Force are kilograms (kg) meters seconds squared (m/s^2)
3. An example of where an object has a net force of zero and not zero is when you are sitting on a chair and gravity is pulling you down, but the chair is pushing you up, and where the chair and your butt meets is where there is zero net force because they are canceled.
4.Inertia is when matter stays in its existing state of rest or uniform in a straight line and can only be changed by an external force. If there is more mass, there will be more inertia.
5. Isaac Newton was a physicist born in 1643 in England aka Europe. He has the background of becoming one of the view first scientists to define the modern principles of physics, and he has three laws he created.
6.Newtons First law has to do with Inertia where an object is at rest at zero.Newton's Second law is where things change due to human interaction and its not equal to zero. Newton's Third Law is where forces are in pairs.
7. Equilibrium is a when all forces acting on an object can each other out, so both sides are balanced. 
8. 1.6N / 2.2 kg= .727 m/s^2
9. 13.5N/ 6.5m/s^2 = Mass
Mass = 2.08 grams
10.Force makes you move because it acts on you. it was observed that when object exerts force on another object, the second object exerts an equal amount of force.
11. The difference between mass and weight is that mass is how much matter an object has and can never change depending of where the object is, meanwhile weight is how force is push on an object with a given mass.
12.A normal force is the support force exerted on a an object when it is in contact with a stable object.
13. Frictional force and Normal force are proportional to each other because they act in the opposite direction from each other.
14. Static friction force must overcome a force that is acted on before moving. Static coefficient is usually higher than the kinetic coefficient.The force of the kinetic coefficient usually slows down a moving object. 

]]> 2017-10-12 15:36:46 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196490007 Shreyash Patel and Enrick David https://padlet.com/tec430/7xe2y3jfcr7l/wish/196490082 1.A force is a push or pull on an object that causes movement. It relates to velocity displacement and acceleration, as it is can cause movement, change in speed, and change in direction.
2.The SI unit for force is the newton.
3.Plate on a table= net force of zero
    Plate falling off a table= net force not zero
4. Inertia is when an object stays still or in motion in a straight line. It relates to mass more inertia means greater mass. 
5. Isaac Newton was a 17th century scientist who created the theory on gravity and created calculus.
6.Newton’s First Law: Every object moves in a straight line unless acted upon by a force.
Newton’s Second Law: The acceleration of an object is directly proportional to the net force exerted and inversely proportional to the object’s mass.
Newton’s Third Law: For every action, there is an equal and opposite reaction.
7. Equilibrium - A state of rest or balance due to the equal action of opposing forces.
8. 2200 g / 1000 = 2.2 kg
     1.6 N / 2.2 kg = 0.727 m/s^2
9. 13.5 N /  6.5 m/s^2 = 2.08 kg
10. Newton's Third Law of Motion explains that forces always come in action-reaction pairs. The Third Law states that for every action force, there is an equal and opposite reaction force.
11. Mass stays the same anywhere. Weight changes due to the gravity.
12.Normal Force - A support force exerted upon an object that is in contact with another stable object. A normal force is exerted horizontally between two objects that are in contact with each other.
13. Normal force is perpendicular to the ground while frictional force is parallel to the surface.
14. Fk = μk η
 Fk - Force of Kinetic Friction
 μk - Coefficient of Kinetic Friction
 η - Normal Force
The kinetic coefficient is the force acting upon a moving which changes, while the static coefficient is the force whose value does not change.
]]> 2017-10-12 15:36:56 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196490082 Annie Tong and Andrea AhSue https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491524 1) Force is mass multiplied by acceleration. Force is velocity multiplied by the derivative of mass with respect to time. The acceleration in Force affects displacement.
2) N (Newtons); kg m/s^2
3) Net force of zero: Box at rest on a table. Net force of not zero:  Box falling from a building.
4) Inertia is a tendency to do nothing or to remain unchanged. The more mass, the more inertia.
5) Sir Isaac Newton was an English mathematician, astronomer, and physicist who is widely recognized as one of the most influential scientists of all time and a key figure in the scientific revolution. He lived from 1643-1727. Isaac Newton was born to a prosperous farmer. He was born premature and had a low chance of surviving. His insecurities caused him to anxiously obsess over his published work.
6) 1st: Law of Inertia
2nd: F = ma
3rd: Every action has an equal and opposite reaction.
7) Equilibrium is when the net change is equal to zero.
8) 2200 g/1000 = 2.2 kg
1.6N/2.2 kg = 0.727 m/s^2
9) 13.5N/6.5 m/s^2 = 2.077 kg
10) Because of Newton's third law: Every action has an equal and opposite reaction. 
11) Mass is the same anywhere. Weight differs due to gravity.
12) The normal force is the support force exerted upon an object that is in contact with another stable object. For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book.
13) Because of Newton's 3rd law: Every action has an equal and opposite reaction. 
14) When two surfaces are moving with respect to one another, the frictional resistance is almost constant over a wide range of low speeds, and in the standard model of friction the frictional force is described by the relationship below. Static frictional forces from the interlocking of the irregularities of two surfaces will increase to prevent any relative motion up until some limit where motion occurs. It is that threshold of motion which is characterized by the coefficient of static friction.  The coefficient of static friction is typically larger than the coefficient of kinetic friction.]]> 2017-10-12 15:38:30 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491524 Paj Thao https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491531 1) A force is a push or pull exerted on an object. It is related to velocity, displacement, and acceleration because it can cause an object to speed up, slow down, or change direction. Forces are vectors with magnitude and direction.
2) The SI unit for force is the newton. The smaller sub-units associated with it are meters, kilograms, and seconds. 1 N = 1 kg*m/s^2.
3) Force diagrams where an object has a net force of zero: a student sitting on a stool. The net force of gravity pulling down and the stool pushing up on the student is zero. Force diagrams where an object does not have a net force of zero: when an object is in free fall.
4) Inertia is a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
5) Isaac Newton was an English mathematician, astronomer, and physicist who lived from 1643-1727 (during the Scientific Revolution). He is regarded as a great scientist because of his breakthrough discoveries, including the principles of modern physics.
6) Newton's first law: An object will remain at rest or in uniform motion in a straight line unless acted upon by an external force.
Newton's second law: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Newton's third law:  For every action, there is an equal and opposite reaction.
7) Equilibrium is a condition in which all influences or forces acting on an object cancel each other, so that a static or balanced situation results.
8) 2200 g * (1/1000 kg/g) = 2.2 kg
1.6 = 2.2*a
a = 0.727 m/s^2
9) 13.5 = 6.5*m
m = 2.077 kg
10) Forces always act in pairs because of Newton's third law: For every action, there is an equal and opposite reaction. In every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
11) Mass is the measurement of the amount of matter something contains, while weight is the measurement of the pull of gravity on an object. Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
12) Normal force is the component, perpendicular to the surface or plane of contact, of the contact force exerted on an object by, for example, the surface of a floor or wall, preventing the object from falling. In other words, it is the force that surfaces exert to prevent solid objects from passing through each other.
13)  The normal force is the force pushing the two surfaces together, and the stronger the normal force, the stronger the force due to friction. Friction results from the two surfaces being pressed together closely, causing intermolecular attractive forces between molecules of different surfaces. As such, friction depends upon the nature of the two surfaces and upon the degree to which they are pressed together. While normal force is always perpendicular to the surface, frictional force is always parallel to the surface.
14)  Ffrict = µ • Fnorm 
The kinetic coefficient is used when two objects are sliding against each other. The static coefficient is used when the two surfaces are not sliding across each other. Sometimes, when a force is exerted on an object, it will not move because of the static friction. 
The coefficient value is dependent primarily upon the nature of the surfaces that are in contact with each other. Values have been experimentally determined for a variety of surface combinations and have been tabulated. The values of μ provide a measure of the relative amount of adhesion or attraction of the two surfaces for each other. The more that surface molecules tend to adhere to each other, the greater the coefficient values and the greater the friction force.
 Ffrict-sliding = μfrict-sliding • Fnorm
Ffrict-static ≤ μfrict-static• Fnorm 
]]> 2017-10-12 15:38:31 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491531 Lawrence Nguyen and Emily Hung lnguyen12 https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491791 1) Force is equal to mass times acceleration. It is the strength or energy as an attribute of physical action or movement. A force must be applied in order for velocity, displacement, and acceleration to occur. 
2) The SI unit for force is the newton (N). The smaller, sub-units associated with it are the kilogram (kg), the meter (m), and the second (s).
3) An example where an object has a net force of zero is a parked car. An example where an object does not have a net force of zero is when a car is accelerating on a freeway. 
4) Inertia is when an object continues in its existing state of rest or motion in a straight line, unless an external force changes its state. Mass depends solely on the inertia of an object because the more inertia an object has, the greater its mass will be. 
5) Isaac Newton is known for his work on gravity. He was an English mathematician, astronomer, and physicist in the 17th and 18th centuries. He born on Jan. 4, 1643 and died March 31, 1727. He formulated the laws of motion and universal gravitation that was set as the precedent for the next three centuries. 
6) Newton's first law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. Newton's second law states that the external net force on an object is equal to the mass of an object multiplied by the acceleration. Newton's third law of motion states that all forces in the universe occur in equal but oppositely directed pairs. For every external force that acts upon an object there is a force of equal magnitude, but in an opposite direction. 
7) Equilibrium is a state in which opposing forces are balanced. 
8) 2200g = 2.2 kg
1.6N = 2.2kg x a
1.6N / 2.2kg = a
a= .7272
9) 13.9N = m x 6.5m/s2
13.9N / 6.5m/s2 = m
m = 2.1385kg
10) Forces act in pairs because for every action their must be a reaction.
11) Mass is a measurement of the amount of matter something contains, whileWeight is the measurement of the pull of gravity on an object. Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
12) The normal force is the support force exerted upon an object that is in contact with another stable object.
13) Frictional force is proportional to normal force because friction acts opposite to the direction of the original force. Frictional force = frictional coefficient times normal force.
14) The static coefficient is the force whose value is constant and doesn't change. The kinetic coefficient is when 2 objects are slide against each other. ]]> 2017-10-12 15:38:59 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196491791 Olivia Foreman & Harry Haessner oforeman https://padlet.com/tec430/7xe2y3jfcr7l/wish/196492177 1) A force is a push or pull exerted on an object in order to cause movement. The force on an object relates to the velocity since the factors of velocity, acceleration, and displacement influence the object to move or stop. Thus, since motion involves acceleration, velocity, and displacement, the force has a direct relationship with these concepts.
2) The SI unit for force is newton (N); the sub-units associated with it are kg m/s^2.
3) An example of a force diagram where an object has a net force of zero and not zero would be a book placed on a table and a book being pushed off the table. The book sitting upon the table would be zero since there is no force being placed on the object while the book being pushed off the table involves acceleration, velocity, and displacement to create a net force for this motion to occur.
4) Inertia is the state of matter when it is constantly remains at an unchanging state with no interference with external forces. Mass is a measure of inertia due to the relationship they have with each other in which mass is the result of the amount of inertia the object sustains.
5) Issac Newton was a seventeenth century  English physicist and mathematician known for his efforts on the laws of gravity and influence on the scientific revolution.
6) Newton's First Law (the law of inertia) states how an object will remain at rest or speed at the same rate unless acted on from an outside force. Newton's Second Law introduces the concept of objects not being balanced despite their existence. This law conveys how acceleration is determined by the mass and the net force of an object. Newton's Third Law consists of the idea of how with every force existing in nature, there is an opposite reaction, thus the outcome of the reaction must acknowledge both aspects of this equal and opposite reaction. 
7) Equilibrium is the state in which opposite forces become balanced with each other; the break-even point. 
8) 1.6 N/ 2.2 kg= 0.73 m/s^2
9) 13.5/ 6.5 m/s^2=2.08 kg
10) Forces always act in pairs because going back to what Newton included in his third law, every force has an equal and opposite reaction when acted upon. Therefore when forces interact, there are pairs that act on the pairs being created by the forces (equal and opposite forces).
11) The difference between mass and weight is mass involves the actual amount of matter an object has while weight is the force exerted on the object. Weight can be measured on a scale while mass is measured on a balance (to find the quantity of matter it contains).
12) The normal force is the support force exerted upon an object that is in contact with another stable object. 
13) Frictional force is proportional to normal force because of how force creates an equal and positive outcome as they act on opposite ends of each other.
14) The kinetic coefficient and static coefficients are used in calculating frictional forces because the kinetic coefficient is the force acting upon motion while it changes while the static coefficient is the force that does not change. ]]> 2017-10-12 15:39:42 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196492177 Kimmy Tran, Jorge Perez, and Fernando Amador https://padlet.com/tec430/7xe2y3jfcr7l/wish/196492441 1. Force is mass times velocity and causes movement. Motion involves velocity, displacement, and acceleration.
2. The SI unit for force is newton, symbol N. The smaller, subunits associated with newtons are the meter (m: unit of length), the kilogram (kg: unit of mass), and the second (s: unit of time).
3. If a box was merely placed on a table, the net force would be zero since there is no force being placed on the book. If the box was pushed off the table, there would be a net force of not zero since acceleration, velocity and displacement are involved.
4. Inertia is the tendency to do nothing or to remain unchanged. The tendency of an object to resist changes in its state of motion depends on the object's mass. The more inertia an object has, the more mass it has.
5. Issac Newton was an English mathematician, astronomer, and physicist who was best known for his work with gravity. He was born in 1642 and died in 1727.
6. Newton's First Law: An object will remain at rest or remain in motion in a straight line. Newton's Second Law: The acceleration of an object as produced by a net force proportional to the magnitude. Newton's Third Law: For every action, there is an equal and opposite reaction.
7. A state in which two objects are equal.
8. 1.6N = 2.2KG x A
1.6N/2.2KG = A
A = .7272
9. 13.5N = M x 6.5M/S2
M2.1385KG
10. They act in pairs because all the actions of the objects must have a reaction.
11. Mass is the amount of material in an object. And weight is how much it weighs.
12. Normal Force: Is the component, perpendicular to the surface.
13. Frictional force is parallel to the surface of an object and Normal Force is perpendicular to the surface of an object.
14. Kinetic Coefficient: Friction is defined as the ratio of force of friction to the normal force. Static Coefficient: Can be calculated by taking the coefficient of friction between the two surfaces and multiplying it by the normal force that the surface is applying to the object. ]]> 2017-10-12 15:40:10 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196492441 Scott Nguyen https://padlet.com/tec430/7xe2y3jfcr7l/wish/196495186 1. A force is a push or pull and its also a vector quantity because it has both magnitude and direction. A force can cause an object to change its velocity i.e. to accelerate.
2.  The SI unit for force is in Newtons (N); kg m/s^2
3. If a box was placed on a table and its at rest, the net force would be zero since there is no force exerted on the box. If the box is being pushed off the table it would not be zero because there is a force acting upon it.
4. a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.
5. He was known for his work on gravity. His works were go genuine that he was the first scientist to be knighted which is why he has the word "Sir" in his name. He lived in England
6. Newton's First law-  An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Newton's Second law- The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Newton's Third law- For every action, there is an equal and opposite reaction. The statement means that in every interaction, there is a pair of forces acting on the two interacting objects. The size of the forces on the first object equals the size of the force on the second object.
7. A state in which opposing forces or influences are balanced.
8. 1.6N=2.2kg*A
1.6N/2.2kg=A
A=0.73
9. 13.5N= M* 6.5m/s^2
M=13.5N/6.5m/s^2
M=2.08
10. Newton's third law states that for every action force there is an equal and opposite reaction force.
11. mass is the amount of material contained in a body and is measured in kg, gm, etc. weight is a force exerted by gravity on the object. mass is an independent variable and weigh is dependent because it is different on the moon, earth and other places.
12.The normal force is the support force exerted upon an object that is in contact with another stable object.  For example, if a book is resting upon a surface, then the surface is exerting an upward force upon the book in order to support the weight of the book. 
13. Part of the standard model of surface friction is the assumption that the frictional resistance force between two surfaces is proportional to the normal force pressing them together. ... The same normal force is exerted, but the traction (friction) is greater with the wider tire since it doesn't pack the snow as much. 
14. The kinetic coefficient is used when two objects are sliding against each other and the static coefficient is a force whose value does not change.]]> 2017-10-12 15:45:01 UTC https://padlet.com/tec430/7xe2y3jfcr7l/wish/196495186