A Coin Kept at a Distance of 5cm from the Centre of a Turntable of Radius 1.5m Just Begins to Slip When the Turntable Rotates at a Speed of 90 R.P.M. - Physics

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A coin kept at a distance of 5cm from the centre of a turntable of radius 1.5m just begins to slip when the turntable rotates at a speed of 90 r.p.m. Calculate the coefficient of static friction between the coin and the turntable.

[g = 9.8 m/s2]

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Given that r = 5 cm = 0.05 m,
n = 90 r.p.m. = 1.5 Hz
Limiting force of static friction = Centrifugal force







Concept: Centrifugal Forces
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2015-2016 (March)



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