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An electric motor can accelerate a Ferris wheel of moment ofinertia 10100 kg · m^2 from rest to 12.4 rev/min in 13.3 s.When the motor is turned off, friction causes the wheel to slowdown from 12.4 rev/min to 6.11 rev/min in 8.74 s.
a) Determine the torque generated by the motor to bring the wheelto 12.4 rev/min. Answer in units of N · m.
b) Determine the power needed to maintain the rotational speed at12.4 rev/min. Answer in units of W.
Assume the masses described in the preceding problem are 1kg and 100kg in that order. Compare the accelerations while they are interchanged.
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