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September 23, 2014

Homework Help: physics

Posted by Shane on Thursday, November 15, 2012 at 5:25pm.

A large grinding wheel in the shape of a solid cylinder of radius 0.330 m is free to rotate on a frictionless, vertical axle. A constant tangential force of 260 N applied to its edge causes the wheel to have an angular acceleration of 0.795 rad/s2.
(a) What is the moment of inertia of the wheel?
1 kg m2

(b) What is the mass of the wheel?
2 kg

(c) If the wheel starts from rest, what is its angular velocity after 4.70 s have elapsed, assuming the force is acting during that time?
3 rad/s

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