How much torque is applied to the disk

Reference no: EM13330480

Starting from rest, a 12 cm diameter compact disk takes 2.4 s to reach its operating angular velocity of 1925 rpm. Assume that the angular acceleration is constant. The disk's moment of inertia is 2.5 ? 10-5 kg·m2.

(a) How much torque is applied to the disk?

N·m

(b) How many revolutions does it make before reaching full speed?

revolutions

Reference no: EM13330480

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