First slide
NA
Question

A lead ball strikes a wall and falls down. A tennis ball having the same mass and velocity strikes the same wall and bounces back. Which is the correct statement?

Easy
Solution

Change in momentum of the tennis ball = mu - (-mu) = 2mu

Change in momentum of the lead ball = mu - 0 = mu

Get Instant Solutions
When in doubt download our app. Now available Google Play Store- Doubts App
Download Now
Doubts App