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A gramphone record is revolving with an ...

A gramphone record is revolving with an angular velocity `omega`. A coin is placed at a distance `R` from the centre of the record. The static coefficient of friction is `mu`. The coin will revolve with the record if

A

`R gt (mu g)/(omega^(2))`

B

`R = (mu g)/(omega^(2))`

C

`R lt (mu g)/(omega^(2))`

D

`R le (mu g)/(omega^(2))`

Text Solution

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The correct Answer is:
D
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