(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A 52 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is above the bar is 1.3 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.

2. Relevant equations

1/2mv^{2}= mgy + 1/2mv^{2}

3. The attempt at a solution

1/2 (52kg)(10 m/s)^{2}= 52kg (9.8 m/s^{2}) y + 1/2 (52kg)(1.3 m/s^{2})

y=51.8m

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Determining altitude given velocities and mass

**Physics Forums | Science Articles, Homework Help, Discussion**