A 63 k g trampoline artist jumps vertically upward from the top of a platform wi

Question

A 63kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.9m/s a)How fast is he going as he lands on the trampoline, 2.0 m below? Express your answer to two significant figures and include the appropriate units. b) If the trampoline behaves like a spring of spring constant 6.3 A 63kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.9m/s a)How fast is he going as he lands on the trampoline, 2.0 m below? Express your answer to two significant figures and include the appropriate units. b) If the trampoline behaves like a spring of spring constant 6.3

Explanation / Answer

a)

.5m*4.9^2+mg*2=.5mv^

v=7.95 m/s

b).5m7.95^2=.5*6.3*10^4*x^2

x=.25 m

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