Question

A ball of mass 0.4 kg moving with uniform speed of 2m/s strikes normally a

wall and rebounds. Assume the collision to be elastic and the time of contact

with the wall is 0.4 sec. The magnitude of force exerted on the ball is

1) 4N 2) 2N 3) 8N 4) 16 N​

Answer 1

Answer:

2) 2N

Step-by-step explanation:

i think it is correct

it may be wrong