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    Rotational motion

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    An electric motor can accelerate a Ferris wheel of moment of inertia l = 22000 kg m^2 from rest to 11.0 rev/min in 12.0 s. When the motor is turned off, friction causes the wheel to slow down from 11.0 to 9.0 rev/min in 10.0s.

    a) Determine the torque generated by the motor to bring the wheel to 11.0 rev/min.

    b) Determine the power that would be needed to maintain this rotational speed.

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    Solution Summary

    A step by step solution is provided to determine torque and power.