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The law of conservation of energy, which states that the amount of energy in a system is constant. For questions about Earth's environment, see the climate-science tag instead.

-2 votes

Why does energy conservation give me the wrong answer in this inelastic collision problem?

I think that the hypothesis of momentum conservation is flawed since the problem really doesn't state that. Also there's nothing saying that the system is isolated at all. Hence you calculated what y …
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