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A particle rests on the top of a smooth ...

A particle rests on the top of a smooth hemisphere of radius `r`. It is imparted a horizontal velocity of `sqrt(etagr)`. Find the angle made by the radius vector joining the particle with the vertical at the instant the particle losses contact with the sphere.

A

`30^(@)`

B

`45^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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