Posted by **Emily Grossman** on Wednesday, February 23, 2011 at 9:48pm.

A 65kg trampoline artist jumps vertically upward from the top of a platform with a speed of 5.0m/s. a) How fast is he going as he lands on the trampoline, 3.0m below. b) if the trampoline behaves like a spring with a spring stiffness constant 6.2*10^4N/m, how far does he depress it?

- Physics -
**drwls **, Thursday, February 24, 2011 at 2:39am
a) When hitting the trampoline H=3.0 m below, the kinetic energy will have increased

from (1/2)MVo^2 to

(1/2)MV1^2 =

(1/2)MVo^2 + MgH

Solve for V1

V1^2 = Vo^2 + 2gH

b) (1/2)MV1^2 = (1/2)kX^2

Solve for X, the trampoline displacement.

- Physics -
**telly**, Tuesday, January 17, 2012 at 9:51pm
.307

## Answer this Question

## Related Questions

- Physics Work and Energy - A 55 kg trampoline artist jumps vertically upward from...
- physics - A 85 kg trampoline artist jumps vertically upward from the top of a ...
- Physics!!!! - A 78 kg trampoline artist jumps vertically upward from the top of ...
- physics - A spring-like trampoline dips down 0.08 m when a particular person ...
- physics - A 42.0 kg girl jumps on a trampoline. After stretching to its bottom ...
- Physics - Forces - A 42kg girl jumps on a trampoline, after stretching to its ...
- physics - A little girl with a mass of 33 kg jumps on a trampoline that has an ...
- Physics - You bounce on a huge trampoline and start oscillating up and down with...
- physics - A girl with a mass of 83 kg is climbing in a tree 20 m above the ...
- Physics - A sumo wrestler originally jumps 10 cm above a trampoline but has the ...

More Related Questions