He was trying to get away from the chimera. I guess he was hoping he wouldn't die and was praying to Poseidon.
yes
Percy decided to jump because there was a giant,fire breathing chimera in front of him.
He thought that if he fell off the arch, the monster will assume that he died, leave, and do nothing and so that would keep his family safe.
off the arch
parabola
Because the kids who jump him in the alley are mortals
in the tunnel. jump on the light cord to get a paper.
when you decide to build a good jump, you shold make sure you start small, you dig, shape then jump :)
in a dommed arch clim up the light bulb cord and jump to it
he jumps out of the hole that the chimera made and fell into the river.
the arch in your foot helps you move your foot up and down and what not!! :) Um... I think you mean, "The arch in your foot." And it's so you can better distance when you jump and leap about. And to give you just a bit of height. That's my theory.
They giveyour fot more arch for more jump in your step.