Posted by **Tarissa** on Friday, July 29, 2011 at 11:25pm.

A kid slides down an icy (frictionless) hill starting from res. At the top his gravitational potential energy is 500J. Suppose after reaching the bottom he then continues sliding up another icy slope on the other side of the valley. Whenhe finally comes to a stop he will have reached a height :

A>equal to the height he started from on the other hill

B>less than the height he started from on the other hill

C>more than the height he started from on the other hill

D>none of the above

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