Posted by Jordan on Wednesday, June 29, 2011 at 12:57am.
PE = mgh = 10 * 9.8 * 10 = 980J.
KE = 0.5mV^2 = 0.5 * 5 * (12)^2 = 360J.
KE = 0.5 * 10 * 5^2 = 125J.
PE = 5 * 9.8 * 10 = 490J.
You are correct!
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