Question

A Cricket player lowers his hands while catching a Cricket ball to avoid injury.

1. What do you mean by impulsive force?

2. Prove impulse – momentum theorem.

Answer 1

1. The forces which action bodies for short time are called impulsive forces.

Example:

• In hitting a ball with a bat
• In firing a gun

2. F = \(\frac{dp}{dt}\)

F∆t = dp

impulse = change in momentum.