Question

A 150g cricket ball moving at a speed of 12ms-1 is hit by a bat and turned back at a speed of 20ms-1. The duration of impact is 0.01s .What is the average force exerted on the ball by the bat?

Answer 1

F=ma
F =m(v-u) /t
F=m(v-u) /t =0.15*(20-(-12))/0.01=0.15*32/0.01=480 N