Posted by **Matthew** on Tuesday, December 6, 2011 at 7:16pm.

An electric motor rotating a workshop grind- ing wheel at a rate of 147 rev/min is switched off with a constant deceleration of 1.24 rad/s2.

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

Answer in units of s

Through how many radians has the wheel turned during the deceleration?

Answer in units of rad

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