A metallic ball strikes a wall and falls down whereas a tennis ball having the same mass and velocity bounces back. The reason for this is that

Both suffer equal change in momentum

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The tennis ball suffers a greater change in momentum

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Metallic ball suffers a greater change in momentum

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The momentum of the tennis ball is less than that of the metallic ball

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Solution

The correct option is B The tennis ball suffers a greater change in momentum
Change in the momentum = Final momentum - initial momentum
For lead ball $Δ P_{l e a d} = 0 - m v = - m v$

For tennis ball $Δ P_{t e n n i s} = - m v - m v = - 2 m v$
i.e. tennis ball suffers a greater change in momentum.

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A metallic ball strikes a wall and falls down whereas a tennis ball having the same mass and velocity bounces back. The reason for this is that

The correct option is B The tennis ball suffers a greater change in momentumChange in the momentum = Final momentum - initial momentum For lead ball ΔPlead=0−mv=−mv For tennis ball ΔPtennis=−mv−mv=−2mv i.e. tennis ball suffers a greater change in momentum.