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A body of mass 1 kg is moving in a verti...

A body of mass 1 kg is moving in a vertical circular path of radius 1 m. The difference between the kinetic energies at its highest and lowest position is

A

`20 J`

B

`10 J`

C

`4sqrt(5)J`

D

`10(sqrt(5)-1)J`

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The correct Answer is:
A
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