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A mass m slips along the wall of a semis...

A mass m slips along the wall of a semispherical surface of radius R . The velocity at the bottom of the surface is

A

`sqrt(Rg)`

B

`sqrt(2Rg)`

C

`sqrt(lambdaRg)`

D

`sqrt(lambdaRg)`

Text Solution

Verified by Experts

The correct Answer is:
B
According to the law of conservation of energy
`1/2mv^2=mgR` v=`sqrt(2gR)`
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