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A boy is sitting on a horizontal platfor...

A boy is sitting on a horizontal platform in the shape of a disc at a distance of 5m from its centre. The boy begins to slip when the speed of wheel exceeds 10 rpm. The coefficient of friction between the boy and platform is: `(g = 10 ms^(-2))`

A

`pi^2//6`

B

`pi^2//18`

C

`pi//6`

D

`pi//2`

Text Solution

Verified by Experts

The correct Answer is:
B
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