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A uniform bar of mass m is supported by ...

A uniform bar of mass m is supported by a pivot at its top about which the bar can swing like a pendulum. If a force F is applied perpendicular to the lower end of the bar as shown in figure, what is the value of F in order to hold the bar in equilibrium at an angle `(theta)` from the vertical

A

`2 mg sin theta`

B

`mg sin theta`

C

`(mg)/2 sin theta`

D

`(mg)/2 cos theta`

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The correct Answer is:
C
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