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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. A small dot is painted on the edge of the disk. The disk accelerates at 600 rad/s^2 for 1/2 s , then coasts at a steady angular velocity for another 1/2 s .

what is its speed at 1s?
How many revolutions?

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Category:- Physics
Reference No.:- M9651521

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