Posted by **Jordan** on Wednesday, June 29, 2011 at 12:57am.

Which of the following contains the most mechanical energy?

A 10 kg ball at the top of a hill 10 meters high

A 5 kg ball rolling with a velocity of 12 m/s

A 10 kg ball rolling with a velocity of 5 m/s

A 5 kg ball at the top of a hill 10 meters high

I think it is A

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