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December 19, 2014

December 19, 2014

Posted by **Joey** on Wednesday, January 5, 2011 at 9:32am.

(a) How much of this initial kinetic energy is rotational?

1 J

(b) What is the speed of the center of mass of the sphere at the initial position?

2 m/s

Now, the sphere moves 1.0 m up the incline from its initial position.

(c) What is its total kinetic energy now?

3 J

(d) What is the speed of its center of mass now?

4 m/s

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