A body of mass 2 kg is thrown up vertically with K.E. of 490 joules. If the acceleration due to gravity is 9.8m/s 2 , then the height at which the K.E. of the body becomes half its original value is given by
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Verified by ExpertsThe correct answer is:
B
Let h is that height at which the kinetic energy of the body becomes half its original value i.e. half of its kinetic energy will convert into potential energy

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