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OpenStudy (anonymous):
How do you do this question: A 60-kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. Neglect air resistance, as well as any energy absorbed by the pole, and determine her altitude as she crosses the bar.
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OpenStudy (joannablackwelder):
KEinitial + PEinitial = KEfinal + PEfinal since we are neglecting air resistance and other absorbed energies from the system.
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