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April 21, 2014

Homework Help: physics

Posted by Joey on Wednesday, January 5, 2011 at 9:34am.

A 1000 kg car has four 20 kg wheels. When the car is moving, what fraction of its total kinetic energy is due to rotation of the wheels about their axles? Assume that the wheels have the same rotational inertia as uniform disks of the same mass and size.
1
Why do you not need to know the radius of the wheels?

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