Posted by **Daisy** on Friday, May 18, 2012 at 9:44pm.

A 78 kg trampoline artist jumps vertically upward from the top of a platform with a speed of 4.4m/s.

v=7.7m/s

If the trampoline behaves like a spring of spring constant 5.6×104 N/m , how far does he depress it?

- Physics!!!! -
**drwls**, Friday, May 18, 2012 at 11:22pm
When does v = 7.7 m/s?

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