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Introductory Physics Homework Help
Assess the statements: about potential and kinetic energy
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[QUOTE="PeroK, post: 5460976, member: 493650"] That's correct. For part b) can you show that the PE is always 75% when the falling object reaches half its final speed? Not just for some specific values. To help you a little, here's how I would have done part a): If an object is lifted a height ##h## the gain in PE is: ##\Delta PE_1 = mgh## If it is lifted a height ##2h## then the gain in PE is: ##\Delta PE_2 = mg(2h) = 2(mgh) = 2(\Delta PE_1)## [/QUOTE]
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Introductory Physics Homework Help
Assess the statements: about potential and kinetic energy
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