ORIGINAL: haasjj
ORIGINAL: Patrick_
Simply set up a drag of X feet, have someone time the run, and calculate it from there. For best results (to lessen the effect of latency of human reaction on the speed/time), set up a longer drag.
Measure out say 100 feet. Give yourself Y feet of initial run before the drag. Time it, and then calculate it.
(LENGTH_FT/TIME_SEC)*(1(mi)/5280(ft/mi))*(60sec/1m)*(60min/1hr)
So if you've got a drag of 100 feet and your truck finishes it in 2.25 seconds:
(100/2.25)*(1/5280)*(60/1)*(60/1) = 30.3MPH
Your math is wrong, I'll give the correct answer when I gat a chance to.
Heh, actually, my math is correct. Maybe putting it in this form will help:
100
ft x 1 mi x 60
s x 60
min
----------------------------------
2.25
s x 5280
ft x 1
min x 1 hr
This equals 30.3mi/hr.