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August 28, 2014

Homework Help: physics

Posted by john on Tuesday, September 25, 2012 at 6:07pm.

A coin is placed 26 cm from the center of a horizontal turntable, initially at rest. The turntable then begins to rotate. When the speed of the coin is 120 cm/s (rotating at a constant rate), the coin just begins to slip. The acceleration of gravity is 980 cm/s
2.
What is the coefficient of static friction between the coin and the turntable?

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