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Magnetic computer Disk

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A magnetic computer disk 8.0 cm in diameter is initially at rest. A small dot is painted on the edge of the disk. The disk accelerates at for , then coasts at a steady angular velocity for another .
Part A
What is the speed of the dot at t = 1.0 s?
Part B
Through how many revolutions has it turned?


Solution Summary

Calculating the number of revolutions of a magnetic computer disk