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A body of mass 2 kg is thrown up vertica...

A body of mass `2 kg` is thrown up vertically with kinetic energy of `490 J`. If `g = 9.8m//s^(2)`, the height at which the kinetic energy of the body becomes half of the original value, is

A

50 m

B

12.5 m

C

25 m

D

10 m

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The correct Answer is:
B
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