STANDARDPhysics-Laws of Motion

STANDARD Physics Impulse and Momentum MCQ Question

Type: MCQ-conceptual-Medium-Class 11

A ball of mass m strikes a rigid wall with speed u and rebounds with the same speed. The impulse imparted to the ball by the wall is

Question diagram
A

2mu

B

mu

C

Zero

D

−2mu

Correct Answer

Option D

Detailed Explanation

The situation is as shown in the figure. Initial momentum = mu, final momentum = −mu. Impulse imparted to the ball = Change in momentum = p_final − p_initial = −mu − mu = −2mu.

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