A metallic ball strikes a wall and falls down whereas a tennis ball having the same mass and velocity bounces back. The conclusion from 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
For metallic ball,
$△ P_{M} = 0 - m u = - m u$
For tennis ball,
$△ P_{T} = - m u - m u = - 2 m u$
$∴ O p t i o n B i s c o r r e c t .$

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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 conclusion from this is that :

The correct option is B The tennis ball suffers a greater change in momentumFor metallic ball,△PM=0−mu=−muFor tennis ball,△PT=−mu−mu=−2mu∴Option B is correct.

The correct option is B The tennis ball suffers a greater change in momentum
For metallic ball,
$△ P_{M} = 0 - m u = - m u$
For tennis ball,
$△ P_{T} = - m u - m u = - 2 m u$
$∴ O p t i o n B i s c o r r e c t .$