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8 December, 23:14

A computer hard 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 500 rad/s2 for 12s, then coasts at a steady angular velocity for another 12s.

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  1. 9 December, 02:02
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    6000 rad/s

    Explanation:

    α=ω/t ⇒ω=αt

    =500*12 = 6000 rad/s
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