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April 24, 2014

April 24, 2014

Posted by **valem** on Thursday, April 7, 2011 at 8:11pm.

- physics -
**drwls**, Thursday, April 7, 2011 at 8:25pmThe applied torque minus the frictional torque is (23.1)(0.170)-3.63 = 0.28 N-m

Torque divided by moment of inertia is the angular acceleration, alpha. Its units are radians/s^2. Calculate it

To unreel all of the hose, you need to turn the reel through 15.5/0.17 = 91.1 radians.

Solve this equation for the required time, t:

91.1 radians = (1/2)*(alpha)*t^2

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