An electric motor rotating a workshop grinding wheel at a


An electric motor rotating a workshop grinding wheel at a rate of114 rev/min is switched off. Suppose the wheel has a constant negative angular acceleration of magnitude1.90 rad/s2.

a) How long does it take for the grinding wheel to stop?

 

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

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Physics: An electric motor rotating a workshop grinding wheel at a
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