Homework Help: Physics

Posted by John on Monday, October 10, 2011 at 7:42pm.

An object of mass 1.4kg is placed 11.5 cm from the axis of a rotating turntable of variable speed. When the speed of the turntable is slowly increased, the object remains fixed on the turntable until a rate of 37 rpm is reached, at which point the object slides off. What is the coefficient of static friction between the object and the turntable?

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