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October 2, 2014

Homework Help: IPC (different one)

Posted by Prue on Monday, January 3, 2011 at 11:30am.

Select all that apply.

A 0.200-kilogram ball sits on a shelf 2.00 meters from the floor and then falls to a point 1.00 meter from the floor. Ignoring any affects due to friction, at this position _____.

1) its mechanical energy is 3.92 J
2) its potential energy is 3.92 J
3) its kinetic energy is 3.92 J
4) its potential energy is 1.96 J
5) its kinetic energy is 1.96 J
6) its mechanical energy is 1.96 J

what are the formulas for this??

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