Re: air resistance

[John Mallinckrodt <ajmallinckro@CSUPomona.Edu>]

On Sat, 29 Nov 1997, JACK L. URETSKY (C) 1996; HEP DIV., ARGONNE NATIONAL LAB, ARGONNE, IL 60439 wrote:

> Hi John-
> 	Have you tried fitting Ludwik's data with a linear, a quadratic,
> and a v^2.5 and calculating a chi-squared for each fit?

No.  First of all, I can't, of course, calculate chi-squared since I don't
know the uncertainties in Ludwik's data.  On the other hand, as I
mentioned before, I *can* reproduce all of his distance data to about plus
or minus one least significant reported digit with anything between a v^.5
and v^3 drag dependence so I am pretty confident that it is not possible
to distinguish between primarily linear and primarily quadratic drag on
the basis of that data.

John
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