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April 17, 2014

Homework Help: Physics-circular force

Posted by Anonymous on Wednesday, October 28, 2009 at 5:02pm.

A coin is placed 11.0 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the coin remains fixed on the turntable until a rate of 31 rpm is reached, at which point the coin slides off. What is the coefficient of static friction between the coin and the turntable?

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