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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

`4sqrt5` J

D

`10(sqrt5-1)` J

Text Solution

Verified by Experts

The correct Answer is:
A
Difference between the kinetic energies at its highest and lowest positions is
`2mgr=2xx1xx10xx1=20J`
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