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The inclined plane OA rotates in vertica...

The inclined plane OA rotates in vertical plane about a horizontal axis through O with a constant counter clockwise velocity `omega=3` rad/sec. As it passes the position `theta=0`, a small m=1 kg is placed upon it at a radial distance r=0.5 m. if the mass is observed to be at rest with respect to inclined plane. The value of static friction force at `theta=37^(@)` between the mass and the incline plane

A

`3/16`

B

`9/16`

C

`4/9`

D

`5/9`

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The correct Answer is:
A
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