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A person is in contact with inner wall o...

A person is in contact with inner wall of a vertical hollow cylinder of radius 2m without floor under his feet, remains in equilibrium without slipping down when the cylinder is rotated about it's own vertical axis. If the coefficient of static friction between person and wall of cylinder is 0.4, the minimum angular velocity of cylinder should be

A

`1.5 rad//s`

B

`2 rad//s`

C

`3 rad//s`

D

`3.5 rad//s`

Text Solution

Verified by Experts

The correct Answer is:
D
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