foothead
Omnicide now.
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There's an error in the online formula. It states to put the cir in in feet. Then does an inch to feet conversion. That's what's throwing it off. It gives a higher mph than it really is. I nabbed another formula that gives a more accurate answer as it's consistent feet through out the equation.
---------- Post added at 01:14 AM ---------- Previous post was at 01:09 AM ----------
Thanks for your help though. You think your math is bad, mine must really stink not to catch that error. Now I have to go back and edit my post.
That formula you linked is correct. I'm not sure where you're seeing an inch to feet conversion, since the only length units it ever uses are feet and miles. Glad I could be of help though.