A flywheel has mass 150 kg and radius 1.2 m,and is accelerated uniformly from rest to an angular speed of 125 radians per second in 12 seconds.What torque is required in order to accomplish this?

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Quizplus · Accepted Answer

Torque = Moment of inertia * Angular accelerationMoment of inertia = (1/2) * mass * radius^2 = (1/2) * 150 kg * (1.2 m)^2 = 108 kg-m^2Angular acceleration = (125 rad/s - 0 rad/s) / 12 s = 10.42 rad/s^2Torque = 108 kg-m^2 * 10.42 rad/s^2 = 1.1 * 10^3 Nm

A Flywheel Has Mass 150 Kg and Radius 1