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Mathematics 7 Online
OpenStudy (anonymous):

which has more gravitational potential energy: 200 kg boulder at 1 meter off the ground. 50 kg boulder 4 meter off the ground . 1 kg at 200 meters off the ground? which of these can do the most work if all the potential energy was converted into kinetic energy?

OpenStudy (anonymous):

so I think they are all EQUAL in energy. [ p.e= mass*g*height] but what about the second part?

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