Question

A player caught a cricket ball of mass 150 g moving at a rate of 20 m/s. If the catching process is completed in 0.1s, the force of the blow exerted by the ball on the hand of the player is equal to(a) 150 N (b) 3 N(c) 30 N (d) 300 N

Answer 1

option C should be the correct answer

Answer 2

To calculate the applied force,we have to calculate the acceleration first.

To calculate the acceleration we have to apply the following mathematical formula;

v(initial velocity)=u(final velocity)+at (acceleration and time respectively)

v=u+at

[According to the data mentioned in the question]

0=20+0.1 a

a=-200

And the mathematical formula to calculate the applied force is;

F=m×a

=0.15×200[SI unit of mass is Kg, that's why 150g=0.15 kg]

=30 N

The applied force by that ball is 30N and the correct answer of this question is option C.