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A 70 kilogram trampoline artist jumps vertically upward from the top of a platform with a speed of 5.5 m/s.
(a) Find how fast is he going as he lands on the trampoline, 3.0 m below?
(b) If the trampoline behaves like a spring of spring constant5.2 x 104 N/m, determine how far does he depress it?
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