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April 21, 2014

Homework Help: Physics. PLEASE HELP!!

Posted by Amber on Friday, April 20, 2012 at 12:37pm.

A uniform disk with a mass of 130 kg and a radius of 1.2 m rotates initially with an angular speed of 950 rev/min. A constant tangential force is applied at a radial distance
of 0.5 m.
How much work must this force do to stop the wheel?
Answer in units of kJ

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