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A body crosses the topmost point of a ve...

A body crosses the topmost point of a vertical circle with a critical speed. Its centripetal acceleration, when the string is horizontal will be

A

g

B

3g

C

4g

D

6g

Text Solution

Verified by Experts

The correct Answer is:
B
`v= sqrt (3rg) `
`a _(r) =(v^(2))/(r)=(3rg)/(r) =3g`
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