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    energy conservation in an eleastic system

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    A 60 kg trampoline artist jumps vertically upward from the top of a platform 3 meters high with a speed of 3.0 m/s.

    (a) How fast is he going as he lands on the trampoline, 3.0 m below?
    _______ m/s
    (b) If the trampoline behaves like a spring of spring constant 5.2 104 N/m, how far does he depress it?
    _______m

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    https://brainmass.com/physics/conservation-of-energy/energy-conservation-eleastic-system-254802

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    We use here conservation of energy.

    Please note: In the second part a lot of students (and sometimes ...

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