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A coin is kept at distance of 10 cm from...

A coin is kept at distance of 10 cm from the centre of a circular turn table. If `mu=0.8` the frequency of rotation at which the coin just begins to slip is

A

62.8 rpm

B

84.54 rpm

C

54.6 rpm

D

32.4 rpm

Text Solution

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The correct Answer is:
B
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