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A stone of mass 2 kg is projected upward...

A stone of mass 2 kg is projected upwards with KE of 98 J. The height at which the KE of the body becomes half its original value, is given by (take, `g=9.8ms^(-2)`)

A

5 m

B

2.5 m

C

1.5 m

D

0.5 m

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The correct Answer is:
B
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