Question

# A lead ball strikes a wall and falls down, a tennis ball having the same mass and velocity strikes the wall and bounces back. Check the correct statement

A

The momentum of the lead ball is greater than that of the tennis ball

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B

The lead ball suffers a greater change in momentum compared with the tennis ball

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C

The tennis ball suffers a greater change in momentum as compared with the lead ball

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D

Both suffer an equal change in momentum

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Solution

## The correct option is C The tennis ball suffers a greater change in momentum as compared with the lead ball Change in the momentum = Final momentum - initial momentum For lead ball △→Plead=0−m→v=−m→v For tennis ball △→Ptennis=−m→v−m→v=−2m→v i.e. tennis ball suffers a greater change in momentum.

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