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July 29, 2015

Homework Help: physics

Posted by monic on Wednesday, November 14, 2012 at 11:32pm.

An electric motor rotating a workshop grinding wheel at a rate of 9.80 101 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 2.00 rad/s2.
(a) How long does it take for the grinding wheel to stop?
s

(b) Through how many radians has the wheel turned during the interval found in (a)?
rad

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