How High Did the Pole Vaulter Jump?

[dstew1019]

Homework Statement

A 50 kg pole vaulter running at 9.5 m/s vaults over the bar. If the vaulter's horizontal component of velocity over the bar is 1.3 m/s, and 200 J of energy is lost due to the friction in the pole, how high did the vaulter jump?

Homework Equations

K1+U1= K2+U2+Wf

The Attempt at a Solution

1/2mvi^2= 1/2mvf^2+mgh+Wf

 

[WillemBouwer]

Okay it doesn't look like much of an attempt at a solution, haha...

List your parameters first, take it small steps at a time...
Once you've listed what known parameters you have substitute it into your relevant equation as stated at you attempt at a solution. Do that and let's work from there...