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When a 19.6 kg wheel with an angular speed of 2.20 rad/s is disconnected from a motor, a 0.238 N · m frictional torque slows the wheel to a stop. If the wheel has radius of 0.75 m, how long will it take for the wheel to come to rest after being disconnected from the motor? I thought that the answer was 67.94 but it was wrong.

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