An electric motor rotating a workshop grinding wheel at a rate of 9.90 101 rev/min is switched off. Assume the wheel has a constant negative angular…

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An electric motor rotating a workshop grinding wheel at a rate of 9.90 101 rev/min is switched off. Assume the wheel has a constant negative angular acceleration of magnitude 1.70 rad/s2. How long does it take for the grinding wheel to stop?

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