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Re: The drag force -- a correction



Dear Justin-
In the absence of a verbatim statement of the problem (which you
should have included), I can only give you a general statement as an
answer. At terminal velocity, the drag force of a falling object is
proportinal to the mass; the up and down forces are in balance, the up
force is the drag force and the down force is mg.
I would not want to critique a paraphrase of someone else's
statement.

Regards,
Jack


Adam was by constitution and proclivity a scientist; I was the same, and
we loved to call ourselves by that great name...Our first memorable
scientific discovery was the law that water and like fluids run downhill,
not up.
Mark Twain, <Extract from Eve's Autobiography>

On Sat, 7 Oct 2000, Justin Parke wrote:

I was mistaken when I quoted an example from University Physics (Sears et
al.) regarding a drag force proportional to mass. The example to which I was
refering is from Classical Dynamics (3rd ed., Marion and Thornton). However,
my question still remains: is this an accurate example?

Justin Parke
Oakland Mills High School