Energy Balance During Bungy Jumping

[7bear]

When we are playing bungy jump, we are instantaneous at rest at the bottom(K.E=0).
At that time, is elastic P.E. greater than gravitational P.E?

 

[HallsofIvy]

Potential energy relative to what?? Potential energy is always measured relative to some point and you haven't told us what that point is. My first guess would be "relative to the point from which you jumped" but in that case the potential energy would be negative and the question is trivial. My second guess would be "relative to
the ground but you haven't told us the height above the ground.

 

[spacetime]

comparing potential energies

You can't comapre potential energies. Because their value are chose arbitrarily. but sure you can compare change in potential energies.

So, if your potential energies initially have the same value, then a direct comparison is possible.

spacetime
http://www.geocities.com/physics_all/index.html