Question

A ball of mass m strikes a wall perpendicularly with a speed v, and it bounces off the wall perpendicularly with a speed v 5 . What is the magnitude of the impulse delivered to the wall by the ball?

Answer 1

Step-by-step explanation:

Given

mass of ball is m

initial velocity of ball is
`v`

Final velocity of ball is
`v_5`

Impulse is the change in momentum of an object when an external force is applied for a given interval of time.

Initial momentum
`P_i=mv`

Final momentum
`P_f=mv_5`

`Impulse=P_f-P-i=m(v_5-v)`