A heavy flywheel rotating counterclockwise about its middle at an original speed of 157.1 rad/s is slowing down because of friction in its bearings. a. If its acceleration is constant at 1.785 rad/s², find its angular velocity at the end of 1.00 minute. b. The flywheel is 5.50 m in diameter and has a mass of 985 kg. If the flywheel resembles a uniform disk, find the torque applied by friction.

Part a)

Final angular speed of the wheel is

Part b)

torque on the wheel is given as

Explanation:

Part a)

As we know that initial angular speed of the flywheel is

angular deceleration of the flywheel is given as

Final angular speed of the fly wheel is given as

Part b)

As we know that moment of inertia of the disc is given as

so we have

So torque on the wheel is given as

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explanation: