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A body slides down a fixed curved track ...

A body slides down a fixed curved track that is one quadrant of a circle of radius `R`, as in the figure. If there is no friction and the body starts from rest, its speed at the bottom of the track is

A

`5g R`

B

`sqrt(5 g R)`

C

`sqrt(2g R)`

D

`sqrt(gR)`

Text Solution

Verified by Experts

The correct Answer is:
C
Loss of `P.E = "gain in K.E"` , `mgh = (1)/(2) m v^(2)`
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