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Assume the trampoline is a simple spring that obeys Hooke's law with a k value of 12 000 N/m and the reference height is 0 m when the trampoline is not stretched.
When the Sumo (m=400 kg) is standing on trampoline (This is the Normal or Contact Plane):
a) How far down does the trampoline stretch?
b) What is the Total Energy at this location?
When the Sumo pushes with his legs against the trampoline. The trampoline stretches another 8 cm down .
c) What is the Total Energy at this location?
d) Using your results for total energy find the average force exerted by the sumo's leg muscles.
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