Question

A player caught a cricket ball of mass 150 g moving at the rate of 20 ms^–1. If the catching process be completed in 0.1 s the force of the blow exerted by the ball on the hands of player is 

(A) 0.3 N 

(B) 30 N 

(C) 300 N 

(D) 3000 N

Answer 1

Correct option: (B) 30 N

Explanation:

F = ma 

F = m ∙ (dv / dt) 

F = (0.15) (20 / 0.1) 

F = 30N