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After a car crash the car driver's airbag inflates. The airbag then deflates when it is hit by the driver's head.

Q1. How does an airbag reduce the risk of injury?

A. Collision time increases, which increases the rate of change of momentum.

B. Collision time increases, which reduces the rate of change of momentum.

C. Collision time decreases, which increases the rate of change of momentum.

D. Collision time decreases, which reduces the rate of change of momentum.

Q2. A ball with mass of 5.0 kg is moving with a velocity of 3.0 m/s.

What is the momentum of the ball?

A. 0.6 kg m/s

B. 1.7 kg m/s

C. 15 kg m/s

D. 15 000 kg m/s

Q3. A rollercoaster speeds along a track with considerable momentum.

If a different rollercoaster travels at four times the speed but has half as much mass, its momentum would be:

A. Zero

B. Twice as much

C. Four times as much

D. Unchanged

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Impulse:

1. In a billiards game, one player hits the cue ball toward another ball. The cue ball has a mass of 0.1 kg and hits the other ball with a velocity of 2 m/s. If the collision is completely elastic and the cue ball travels with a velocity of 0.8 m/s after the crash, what is the mass and velocity of the other ball?

a) 2.8 m/s, 0.043 kg

b) 3.2 m/s, 0.089 kg

c) 4.0 m/s, 0.028 kg

d) 2.2 m/s, 0.13 kg

2. Two sumo wrestlers are in a match. At the start of the game, they both lunge at each other. They hit and miraculously come to a standstill. One wrestler was 200 kg and traveling at a velocity of 2.3 m/s at the instance of collision. If the other wrestler was traveling at 2.9 m/s, what is his mass?

a) 173 kg

b) 159 kg

c) 137 kg

d) 161 kg

3. One car with a mass of 400 kg is traveling east at 20 m/s and collides with a car of mass 800 kg traveling west at 15 m/s. Assuming the collision is completely inelastic, what is the velocity of the first car after the collision?

a) 3.33 m/s west

b) 1.0 m/s east

c) 0.0 m/s

d) 1.0 m/s west

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momentum

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momentum

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momentum

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impulse

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Momentum:

1. What is momentum?

2. How to calculate momentum?

3. How does the momentum of an object change if its mass or velocity is altered?

Impulse:

1. What is impulse?

2. How to calculate impulse?

3. If a force of 10 N is applied for 5 seconds, what is the impulse imparted to the object?

4. How does the concept of impulse explain the effectiveness of airbags in cars?

Conservation of Momentum:

1. What is the principle of conservation of momentum?

2. What is the difference in momentum conservation between elastic and inelastic collisions?

3. How is momentum conserved in an elastic collision?

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Momentum:

What is the momentum of a child and wagon if the total mass and wagon is 22kg and the velocity is 1.5m/s

A 10 kg ball moving at 10 meters per second collides with a stationary 5 kg ball. After the collision, the 10 kg ball is moving in the same direction at 5 meters per second. What is the velocity of the 5 kg ball after the collision?

What is the definition of momentum?

Impulse

What is impulse?

What is the unit of impulse

A toy car collides with a wall and stops after the collision. If the mass of the car is 0.5 kg and it was travelling at a velocity of 10 m/s before it hit the wall, what would be the impulse?

What are the two possible formula's for impulse?

Conservation of Momentum

What is the law of conservation of momentum formula?

What does the law of conservation of momentum state?

A 2600 kg SUV traveling west at 15 m/s collides head on with a 1300 kg sedan traveling east at 20 m/s. Determine the speed and direction of the two cars immediately after impact if they lock together.

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momentum

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impulse

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impulse

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Momentum

1. The gun fires the paintball forwards at a velocity of 90 m / s. The paintball has a mass of 0.0030 kg.

Calculate the momentum of the paintball just after the gun is fired

2. The bus travels at 5 m/s between points A and B. The bus and passengers have a total mass of 16 000 kg

Calculate momentum

3. Tony falls off his skateboard, sending it flying forward at 8.5m/s

The skateboard has a mass of 1.5 kg

Calculate the momentum of the skateboard

Impulse

1. What is impulse?

2. Write the formula for impulse

3. If a force of 10 N is applied to an object for 2 seconds, what is the impulse?

4. If you apply a force of 5 N for 2 seconds, what is the impulse?

Conversation of momentum

1. What does the conservation of momentum mean?

2. If you apply a force of 5 N for 2 seconds, what is the impulse?

3. If two ice skaters push off each other, what happens to their total momentum?

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1. What is the definition of momentum?

2. How is impulse related to momentum?

3. Write the formula for momentum and explain each term.

4. Could you write the formula for impulse and explain each term?

5. If a 2 kg object is moving with a velocity of 5 m/s, what is its momentum?

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same velocity

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1. An object of mass 20 kg is moving at the speed of 5 m/s. What is the object's momentum?

2. What is the definition of momentum in formula form?

a. momentum = mass x velocity

b. momentum = mass x impulse

c. momentum = weight x velocity

d. impulse = change in velocity/change in time

3. Which of these scientists founded the concept of momentum?

a. Isaac Newton

b. Albert Einstein

c. Rene Descartes

d. Louis Pasteur

4. What is the formula for calculating the force in Impulse?

a. force = mass x velocity

b. force = change in momentum x time taken

c. force = change in momentum / time taken

d. impulse = force x time taken

5. A boxer hits an object with a force of 200 N for 2 seconds. What is the Impulse of the boxer?

6. True or False: The Impulse is equivalent to the Change in Momentum

7. A butcher cuts meat for 3 seconds. The force applied in each cut is 40 N. What is the Impulse?

8. What is the Conservation of Momentum principle?

a. The Momentum before collision is greater than the Momentum after the collision

b. The Momentum before the collision is equal to the Momentum after the collision

c. The Momentum before the collision is less than the Momentum after the collision

d. The Momentum depends on the velocity

9. An object of mass 4 kg collides with another object of mass 1 kg at rest at the speed of 8 m/s. What is the velocity of the 1 kg object if the collision is elastic and the velocity of the 4kg object after the collision is 5 m/s?

10. Car A (mass 100kg) moves to the right at the speed of 30 m/s. Car B (mass 80kg) moves to the left at the speed of 25 m/s. If the collision is inelastic, what is the final velocity after the collision, and in which direction?

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What is the definition of Momentum?

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1. What is the definition of momentum?

2. What is the formula for momentum?

3. A car mass of 100kg is traveling at a speed of 20 km/h. What is the momentum of the car?

a. 2,000 kg-m/s

b. 200 kg-m/s

c. 20,000 kg-m/s

d. 20 kg-m/s

1. What is impulse?

2. What is the SI unit for impulse?

a. N/s

b. Kg/s

c. m/s

d. kg-m/s

3. What is the formula for impulse?

4. Example of impulse?

1. Definition of conservation of momentum?

2. SI units of conservation of momentum?

3. What is the formula of conservation of momentum?

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Momentum

1 whats the definition of momentum

2 whats the unit for momentum

3 How to calculate momentum

Impulse

1 what the unit of impulse

2 How to calculate impulse

3 Whats impulse

4 Who thought of the idea of impulse

Conservation of momentum

1 what is the conservation of momentum

2 why momentum conserves

3 Who thought of the principle of conservation of momentum

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Momentum

1. state the principle of conservation of momentum

2. what is momentum

3. What is the SI unit of momentum

Impulse

1. what is impulse

2. How is impulse measured

3. Does impulse equal to momentum

Conservation of momentum

1. what is conservation of momentum

2. What is elastic collison

3. what is inelastic collision

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momentum:

1. what is momentum

2. how to calculate momentum

3. explain why momentum is a vector quantity

impulse:

1. what is impulse

2. whats the forumla of impulse

3. whats the difference of impulse and momentum

4. whats the unit of impulse

conservation of momentum

1. what is the conservation of momentum

2. what are the types of conservation of momentum

3. what is the formula of elastic collision

4. what is the formula of inelastic collision

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Momentum

An object of mass 50kg accelerates from a velocity of 2.0m/ s to a velocity of 10 m/ s in the same direction.

What is the impulse provided to cause this acceleration?

A 250Ns B 400Ns C 850Ns D 2500Ns

Which quantity is measured in newton seconds (Ns)?

A impulse

B moment

C power

D work done

A dummy of mass 70 kg used in a crash test to investigate the safety of a new car, The car approaches a solid barrier at 20 m / s. It crashes into the barrier and stops suddenly.

(a) (i) Calculate the momentum of the dummy immediately before the crash.

Impulse

(i) Explain in words what is meant by the term impulse.

What's the formula for impulse?

A dummy of mass 70 kg used in a crash test to investigate the safety of a new car. The car approaches a solid barrier at 20 m / s. It crashes into the barrier and stops suddenly, Determine the impulse that must be applied to the dummy to bring it to rest

The mass of the hammer head is 0.15 kg.

The speed of the hammer head when it hits the nail is 8.0 m / s.

The time for which the hammer head is in contact with the nail is 0.0015 s.

The hammer head stops after hitting the nail. State the impulse given to the nail

Conservation of Momentum

What is the principle of the conservation of momentum?

How is momentum conserved in inelastic/elastic collisions?

What are the differences between the conservation of momentum in elastic/inelastic conditions.

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momentum

1. what is momentum?

2. If two objects have the same momentum, can they have different velocities?

3. A bicycle has a momentum of 24 kg•m/s. What momentum would the bicycle have if it had twice the mass and was moving at the same speed?

impulse

1. how impulse related to momentum?

2. Calculate the impulse required to stop a car of mass 1,500 kg moving at 20 m/s.

3. what is the formula of impulse?

4. How does the time duration of a force application affect the impulse?

conservation of momentum

1. what is law of conservation momentum state?

2. In a collision between two objects, how is momentum conserved?

3. Two ice skaters push off each other on a frictionless ice surface. If one skater has a mass of 50 kg and the other has a mass of 75 kg, how does their final speed compare?

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Momentum

1. What is the formula for calculating momentum, and what are the units used for momentum?

2. If a car of mass 1000 kg is moving at a speed of 20 m/s, what is its momentum?

3. If a ball is moving faster, does it have more or less momentum?

Impulse

1. Define impulse and explain its relationship with momentum.

2. A tennis ball of mass 0.2 kg is hit by a racket, causing its velocity to change from 5 m/s to 25 m/s. What is the impulse delivered to the ball?

3. Why is it safer for passengers to wear seatbelts during a car crash in terms of impulse and momentum?

4. How can the impulse experienced by an object be increased without changing the force applied?

Conservation of Momentum

1. If two objects collide and stick together, what happens to their total momentum?

2. Two ice skaters push off from each other. If one skater has a mass of 60 kg and the other 80 kg, and the first skater moves away at 3 m/s, what is the velocity of the second skater?

3. Can momentum be transferred from one object to another during a collision?

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Momentum

1. What is the equation of Momentum?

2. What is the Unit of Momentum?

3. A ball with mass of 5.0 kg is moving with a velocity of - 3.0 m/s. Calculate its momentum

Impulse

1. What is the relation between momentum and Impulse?

2. A car of mass 1200 kg is moving at a speed of 20 m/s when it collides with a stationary truck of mass 3000 kg. After the collision, the car and truck stick together.

a) Calculate the velocity of the combined mass immediately after the collision.
b) Determine the impulse exerted on the car during the collision.

3. What is the equation of impulse?

4. A basketball player jumps to make a shot. The player leaves the ground with an initial velocity of 3 m/s upwards and reaches a height of 2 m before falling back down.

a) Calculate the player’s velocity just before they leave the ground.
b) Determine the impulse experienced by the player during the jump if their mass is 80 kg.

Conservation Of Momentum:

1. What is the difference between elastic and inelastic collision? give examples

2. A 2 kg cart moving at a velocity of 3 m/s collides with a stationary 1 kg cart. After the collision, the 2 kg cart moves forward at 2 m/s. Calculate the velocity of the 1 kg cart after the crash.

3. A 0.5 kg basketball is thrown at a speed of 15 m/s toward a player who catches it, bringing it to a stop.

a) Calculate the change in momentum of the basketball.
b) If the player’s mass is 70 kg, determine the player's velocity change after catching the ball? Assume the player was initially at rest.