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A coin placed 30.8 cm from the center of a rotating, horizontal turntable slips when...

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A coin placed 30.8 cm from the center of a rotating, horizontal turntable slips when its speed is 49.6 cm/s.(a) What force causes the centripetal acceleration when the coin is stationary relative to the turntable?static frictioninertiakinetic frictioncentrifugal force(b) What is the coefficient of static friction between coin and turntable?

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