Find through how many revolutions has the disk turned

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Reference no: EM13505783

A magnetic computer disk 7.0 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. The disk accelerates at 590 rad/s2 for 1/2 s, then coasts at a steady angular velocity for another 1/4 s.

What is the speed of the dot at t = 0.75 s?

m/s

Through how many revolutions has the disk turned?

rev

Reference no: EM13505783

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