Question: A coin is resting flat on a rotating platform as shown in the sketch. When the platform is rotating at constant speed, so is the

A coin is resting flat on a rotating platform as shown in the sketch. When the platform is rotating at constant speed, so is the coin. What is forcing it move in the circle at constant speed? Coin_Rotating_platform.png kinetic friction force Normal force Gravitational force No force is necessary as it is moving with constant speed in circle static friction force

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