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Q.

A ball is released from certain height. It loses 50% of its kinetic energy on striking the ground. It will attain a height again equal to

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a

One fourth the initial height

b

Half the initial height

c

Three fourth initial height

d

None of these

answer is B.

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Detailed Solution

Because 50% loss in kinetic energy will affect its potential energy and due to this ball will attain only half of the initial height.
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