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A disc rotates at 60 rev//min around a v...

A disc rotates at `60 rev//min` around a vertical axis.A body lies on the disc at the distance of `20cm` from the axis of rotation.What should be the minimum value of coefficient of friction between the body and the disc,so that the body will not slide off the disc

A

`8pi^(2)`

B

`0.8pi^(2)`

C

`0.08pi^(2)`

D

`0.008pi^(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`f=mromega^(2),mu_(s)N=mromega^(2)`
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