A 140g coin sits on a horizontally rotating turntable. the, Ask an Expert

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Q1. What is the coefficient of rolling friction for tire under low pressure?

What is the coefficient of rolling friction for second one?

Q2. A 140g coin sits on a horizontally rotating turntable. The turn table makes on revolution each 2 s. the coin is located 8.00 cm from the axis of rotation of the turntable. The acceleration of gravity is 9.81 m/s/s. what is the frictional force acting on the coin. Respond in units of N.

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