Hook's law question Physics?

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asteele71

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A gymnast of mass 52 kg is jumping on a trampoline. She jumps so that her feet reach a maximum height of 2.2 m above the trampoline and, when she lands, her feet stretch the trampoline down 63 cm. How far does the trampoline stretch when she stands on it at rest? [Hint: Assume the trampoline obeys Hooke's law when it is stretched.]
 
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