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Potential Energy and Momentum Question

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A man with a mass of 65 kg skis down a friction-less hill that is 4.4m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 19-kgbackpack and skis off a 1.0 m-high ledge. At what horizontal distance from the edge of the ledge does the man land?

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Solution Summary

We solve a problem in classical mechanics involving conservation of energy and momentum.

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First we use conservation of energy to compute the man's speed v0 where the hill levels off. At the top of the hill, his potential energy is given by

Mgh = (65)(9.8)(4.4) = 2800 J.

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