Question

A ball of mass 0.2 kg moving with a velocity 10 m/s hits a bat normally and returns with a velocity 20 m/s. If the duration of impact is 0.01 s, find the average force  exerted by the bat on the ball.

Answer 1

average force = m.a = m.(velocity/time) avg force = 0.2.(10/0.01) =200 N