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December 20, 2014

December 20, 2014

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

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

- Physics -
**bobpursley**, Tuesday, December 6, 2011 at 7:19pmchange rev/min to rev/second

then, wf=wi+at where a=-1.24r/s^2

solve for t.

Dfinal(in radians)=wi*t+1/2 a t^2

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