A coin placed on a disc rotates with speed of 3313rev/min provided that the coin is not more than 10cm from the axis. Calculate the coefficient of static friction between the coin and the disc.
Given,
Frequency of rotation (f)=3313rev/min=1003∗60rev/sec=0.56rev/sec
Radius (r)=10cm=0.1m
Coefficient of static friction (μs)=?
When the coin just sustain on the disc, the frictional force is equal to the centripetal force,
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