The *total* force needed to lift the man off the couch to apex and then
from
apex to stationary on the couch again will be equal. The difference is in
the total amount of time that force is applied.
It's no different from a man climbing a 100' ladder or being shot out of
a
cannon to a height of 100'. Both take about the same amount of energy (
exactly the same in a vacuum), but I'd bet you'd rather climb.
Damn that's stupid....
--
WAFA the newsgroup liar free!
You may think it's stupid, but it's also 100% accurate.