[EricH]

Originally Posted by Molten

The reason I did not source the formula is because it has been around for long enough that it does not need a source. It is common knowledge. Also, the wheels can still be used to measure speed despite the fact that they are not used for propulsion. Furthermore, I am not discussing this anymore until I have seen Mythbusters. I hope that I did a reasonable job explaining some of the misinterpretations of my words. Until then, Good day.

I didn't ask for the source, I asked for a proof. Also, how does it tie in? You did not explain that part. The equation is there with no tie-in.

I don't disagree that the wheels can be used to measure speed, but there is a chance (I've done it in a simulator) that one or more wheels will be off the ground at any given instant, so which wheel do you measure? How do you determine which wheel's data is correct, if you do all of them?

And the conditions are clearly stated in the problem. What conditions did you have in mind? For anyone to analyze your conditions, you have to state them. You don't. Therefore, I cannot fully answer you because my mind-reader is on the blink (and has been for 19 years at this time). If I know what conditions you use, I can either agree or disagree with the conditions. I may or may not agree with you, but not knowing what conditions you have in mind prevents my doing either. I disagree based on the given conditions. You have other conditions. Very well, let's hear them.