https://padlet.com/gouridixit/9e3gohaujrn0a255 “It's tough for magic to argue with physics, most of the time.” en-us 2021-08-01 11:41:56 UTC 2021-08-02 07:18:51 UTC hello@padlet.com gouridixit https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1665885815 1. Define - velocity, force, inertia, acceleration.   (any two)

2.  When a car driver travelling at a speed of 10 m/s applies brakes and brings the car to rest in 20 s, then the retardation will be:

3. Write an example of newtons first law of motion.

4. A particle moving with an initial velocity of 5m/s is subjected to a uniform acceleration of 2.5m/s2. Find the displacement in the next 4 sec.?


]]> 2021-08-01 11:42:15 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1665885815 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666470457 1. Velocity is speed with direction.
     Force is a push or pull which acts          when two things are in contact with each  other.

2. a=v-u/t
       = 0-10/20
       = -10/20
       = -0.5
     Therefore, the retardation is 0.5m/s^2.

3. When we are standing in a bus and the driver suddenly applies breaks we move forward this is due to inertia.

4. s=ut+1/2at^2
       = 5*4 + 1/2*2.5* 4^2
       = 20+ 20
= 40m]]> 2021-08-02 06:44:21 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666470457 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666470931 1. Velocity - It is the rate of change of the object in its position in unit speed.
Acceleration - change of velocity of an object with respect to time.
3. Brakes applied by a bus driver abruptly.
2. u = 10 m/s 
    v = 0 m/s
    t = 20 s
a = v - u/t 
   = 0 - 10/20
   = - 10/20
   = - 0.5
4. s = ut + 1/2 at ^2
5*4 + 1/2 * 2.5
   ]]> 2021-08-02 06:44:56 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666470931 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473285 1.Velocity of an object  is the rate of change of its position in unite time or s+peed with its direction.
Acceleration- is the rate of change  of velocity in unite time.
2.a=v-u/t
=10/20
10/20
0.5 
the retardation is 0.5m/s^2
3.When we are standing in a bus and driver suddenly applies break we move forward this is due to the law of inertia.
4.S=ut+1/2^2
       =5*4+1/2*2. 5* 4^2
        = 20+20
          = 40m]]> 2021-08-02 06:47:38 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473285 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473511 1. A velocity of a body is the distance travelled per second by the body in a specified direction. 
Acceleration is the rate of change of velocity with time.]]> 2021-08-02 06:47:58 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473511 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473556 1.velocity is speed with direction and force is a push or pull which acts on two things which are in contact with each other.
2. a=v-u/t
   =0-10/20
  =-10/20
  =-0.5
so, retardation is 0.5m/s^2
3. when a boy is cycling and suddenly car comes in front and he pushes his brakes and cycle stops so his body is pushed forward this is due to inertia
4. s=ut+1/2at^2
 =5x4+1/2x2.5x4^2
=20+20
=40m]]> 2021-08-02 06:48:02 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666473556 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474259 1.Force- It is a push or pull exerted on an object that results in the contact of two objects.
   Acceleration- Change in velocity of an object per unit time.

2.Acceleration=v-u/t
    v= 0
    u=10
     t= 20m/s
= 0-10/20
=-10/20
= -0.5 m / s²

3. An object which is stationary  will not move  unless an outside force is applied to it.

4. s= ut+ 1/2at²
u= 5
v= 4
a=2.5
t= 4
= 5x4 + 1/2x 2.5x42
=20+20
=40m


]]> 2021-08-02 06:48:52 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474259 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474541 1.A forces is a push or pull upon an object resulting from the object interaction with another object
2. v=o U=10m/s  T=20s
  A = v-u/t
 A = 0 - 20 / 10
 A = 0.5
 3. If you use the same forces to push a truck and push a car the car has less mass
4 . s=5 x 4 + .5x2.5x4^2
s=20 + 20 = 40]]> 2021-08-02 06:49:12 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474541 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474608 1. Velocity:-  Velocity is seed with direction.
     Force :-  Is a push or pull when 2 objects contact with each other.
      
2.  0.5m/s 
U=10m/s
V=0m/s
T=20s
a=(V-U) / t
a=0-10/20
a= -0.5 m/s^2

3. The motion of a ball falling down through the atmosphere, or a model rocket being launched up into the atmosphere are both examples of newton first law.

4. u=5 m/s    a = 2.5m/s.       t =4s
   a =ut +1/2 at^2
 a=5 x 4 + 1/2 (2.5)(4)^2=0m]]> 2021-08-02 06:49:18 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474608 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474792 Q 1
1 Velocity is a speed with direction. 2 Force is  a pull or push acts when two things are in contact with each other.
Q 2
a=v-u/t
  =0-10/20
  =10/20
  =0.5
therefore the retardation is 0.5/s^2
Q3 
when we are standing in a bus and driver suddenly applies breake we move forward this is due to inertia
Q4 s=ut+1/2at^2
        =5*4+1/2*2.5*4^2
        =20+20
=40m]]> 2021-08-02 06:49:35 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666474792 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478178 1)  Velocity- change of position of a body in a direction
Force- a push or pull which results in the interaction of objects
2)]]> 2021-08-02 06:53:50 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478178 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478381 U = 10 m/s
V = 0 m/s
T = 20 s 
- a = ? 
Solution : a = v - u / t 
0 - 10 / 20
= - 10 / 20
= - 5 m/s^2

]]> 2021-08-02 06:54:09 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478381 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478924
Q.no 1
1.Velocity is the rate at which the position changes. 
 2.   Force is a push or pull which ats when two things are  
    contact with each other
   3. Inertia, property of a body by virtue of which it         opposes any agency that attempts to put it in motion
  4.Acceleration, rate at which velocity changes with time
 ]]> 2021-08-02 06:54:57 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666478924 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666480865 3. An object will not change its motion or stay at rest unless acted upon an external unbalanced force.
A ball when kicked will not change its motion or stop when it is in motion unless frictional force acts upon it.]]> 2021-08-02 06:57:40 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666480865 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666489778 Q.No 2 a=v-u/t
           =0-10
           =-10/20
           =-0.5]]> 2021-08-02 07:08:53 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666489778 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666491967 Q.No 3 Place a ball in a box and slowly push the box]]> 2021-08-02 07:11:21 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666491967 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666494596 4. s = ut + 1/2 at ^ 2
       = 5*4 + 1/2 * 2.5 * 4 ^ 2
       = 20 + 20
= 40 m]]> 2021-08-02 07:14:38 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666494596 https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666495421 Q.No 4 
S=ut+1/2
=5x4+1/2x2.5x4^2
=20+20
=40m]]> 2021-08-02 07:15:39 UTC https://padlet.com/gouridixit/9e3gohaujrn0a255/wish/1666495421