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Re: The old loop-de-loop

On 11/16/2003 01:31 PM, Ludwik Kowalski wrote:
In my opinion a very large k does not make potential
energy of a spring negligible when x is very small.

PE=0.5*k*x^2

Well, that's a valid opinion, but not relevant.

It's also true that
PE = 0.5 F^2 / k.

And in the assigned problem, F is specified, not x,
so for any given F, large k means smaller x and
smaller E.