Find the guy's weight: W = mg
Break both forces into F(sub x) and F(sub y): Fcos(26), Fsin(26)
Find how much of his weight the rings support: W - (F(sub y)rope1 + F(sub y)rope2)
Remaining weight is supported by floor, thus, F(floor) = (whatever answer you got for the section immediately...
You're right, actually, it WAS linear. Turns out I'm looking at v^2 as a single variable, which makes the relation a simple direct proportion. :-) Thanks for the help!
Pat
(BTW: Force was constant throughout, so it wasn't a factor...we rigged up a very rough centripetal force apparatus...
Hey--
I'm writing up a physics lab report on centripetal force; at the moment I've hit a problem with the velocity squared vs. radius graph. The graph *should* show a root curve (v^2 = Fr/m) but all of the regression utilities I've used churn out an exponential curve. Here are the four points...