What was the angular acceleration of the disk

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Reference no: EM13647946

A disk is initially at rest undergoes constant angular acceleration. After accelerating for 3.1 s, te disk hasturned to an angle of 120 degrees.
a) what was the angular acceleration of the disk
b) what is its angular speed as the disk turned 120 degrees.

The angular acceleration continues until the disk is spinning at300 rev/min. A break is then applied that causes the disk to slow at a constant deceleration of 1.0 rad/sec^2.

c) how long does it take the brake to bring the disk to a stop
d) through what angle does the disk spin while coming to a stop

Reference no: EM13647946

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