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A thin but rigid semicircular wire frame...

A thin but rigid semicircular wire frame of radius 'r' is hinged at O and can rotate in its own vertical plane. A smooth peg P starts from O and moves horizontally with constant speed `v_(0)` lifting the frame upwards as shown in figure. Find the angular velocity `'omega'` of the frame when its diameter makes an angle `60^(@)` with the verticle

A

`v_(0)//r`

B

`v_(0)//2r`

C

`2v_(0)//r`

D

none

Text Solution

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The correct Answer is:
A
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