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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