JP fell off a 245-foot cliff and survived - good for him
a few years ago a rock climber fell 500-feet into snow and walked away!
Charlie Fowler fell 500 feet down the Diamond into a snow hole ... shouldn't that be the 'record'
JP's "attempt" was noteworthy and sick, but he did not land it or ski away from it...therefore it does not count -
try again JP, this time don't land head first!
as to the physics of it -
Starting with the 4 sec. instead of the 245ft. number:
4sec * 9.8m/s/s = 39.2m/s
Which (if my math is correct) works out to 141.12km/hr, or 87.63mi/hr.
That's the lazy way to calculate it; they didn't say how far out from the cliff he landed or what his lateral velocity was, so calculating the parabola and a more accurate vertical velocity isn't as easy. I suppose you could use the 4 seconds AND the height to calculate that though... I'll leave it for someone else.
I'll leave the calculation for how fast he decelerated to someone else. 6ft. of powder on top of a lot more snow would lessen the impact considerably.
[edit] Yeah, yeah. Wind resistance too.
