Question

A 48.0 kg pole-vaulter running at 11.5m/s vaults over the bar. His speed when he is directly over the bar is 1.5m/s. Neglect air resistance, as well as any energy absorbed by the pole, and

Answer 1

\[KE _{i} + PE _{i} + W _{ext} = KE _{f} + PE _{f}\]

Answer 2

what is the question?

Answer 3

oh hm..idk? the probelm didnt ask any question

Answer 4

wow. lol I'm lost. There is nothing to count and the problem just hangs there

Answer 5

aw ok then ill just skip then? xD

Answer 6

lol :P