October 7, 2015

Homework Help: Science/Math/HElP

Posted by Lila on Wednesday, February 8, 2012 at 7:01pm.

A 25N object is 3 meters up. How much potential energy does it have? our teacher said that the formula for finding out potential energy is PE = Mass * Gravity * Height. The gravity on Earth is always 9.8, but my problem is that instead of mass the object is measured in force. My answer is 735 j.

5x - 30 = 2x + 54. I have to solve for x. So far, I think this is wrong, but I have added 30 to both sides and I solved to get x = 4. Thanks.

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