In reply to simon:
> (In reply to limbimftangftangolebiscuitbarrel) what was the deal with jumping off his ledge? How far down was that and how come he didn't snap his back, I know ropes are dynamic, but that looked along way!
The forces generated are much the same as if you were to fall 20ft. The longer the fall, the more rope you have, the more elongation or stretch you have; ie elongation is directly proportional to length. Acceleration is constant, Force = mass x acceleration. (Don't get confused between force & momentum, which is a function of velocity)