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    Motor coming to rest

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    A motor is running at 12 rpm and the switch is flipped and cuts the power. The rotor weighs 75 lbs. The radius of gyration of the rotor is 6``. The rotor experiences an average friction moment 6 lb/in. How many seconds does it take for the rotor to come to rest?

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    https://brainmass.com/engineering/mechanical-engineering/motor-coming-to-rest-47836

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