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1 kg mass on top of a garden wall 1 m tall:
Pot. en. = mgh = 1 kg * 9.8 m/s^2 * 1 m = 9.8 J

KE = 1/2 * m*v^2 = 0 because it's just sitting there --- v=0.

2007-02-21 10:24:50 · answer #1 · answered by sojsail 7 · 0 0

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