A ball hits the wall horizontally at 6 0 m/s It rebounds horizontally at 4 4 m/s The - Physics -

Question

A ball hits the wall horizontally at 6 0 m/s It rebounds
horizontally at 4 4 m/s The ball is in contact with the wall for 0
040 seconds What is the acceleraiton of the ball ?

C. Muthu Kumari · Accepted Answer

Hi Priyanka,
Here is the answer to your
question,

Let ‘m’
be the mass of the ball which is moving towards the wall
horizontally with a velocity 6 0 ms-1, after hitting the
wall it rebounds back with a velocity -4 4 ms-1 The
negative sign indicates the change in direction of the ball (as the
ball rebounds back so its direction after hitting the wall is
opposite to that of its initial direction)
To find the acceleration of the
ball, we shall first find the change in momentum of the ball,
equate it with the impulse on the ball due to the wall, and then
use Newton’s 2nd Law to find the acceleration of
the ball
<img height="492" width="645" src=
"https://s3mn%20mnimgs%20com/img/shared/userimages/mn_images/image/query%20png"
alt="">
Hope this answers your
question,
Cheers!!

A ball hits the wall horizontally at 6.0 m/s . It rebounds horizontally at 4.4 m/s The ball is in contact with the wall for 0.040 seconds . What is the acceleraiton of the ball ?