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Unformatted text preview: A 60 kg man hangs from a clock with a potential energy of 12,000 J. How far off the ground is he? And now. ..Elastic potential energy http://www.youtube.com/watch?v=Jnj8mc04r9E Work done on a spring: Pe s = k x 2 How much work is done to pull back a bow with a force constant of 1000 N/m a distance of .6 meters? A polevaulters pole his a k of 800 N/m. He stores 16000 J of potential energy in the pole. How far did he bend the pole? What is the k of a spring that has a potential energy of 40,000 J when it is compressed 3 meters? Synthesis I own/ I dont Out: Wile Es shoes each have a k of 60 N/m. He compresses them .3 meters. What is the energy stored in the shoes?...
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 Fall '11
 Burgeson
 Force, Mass, Work

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