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Re: [Phys-l] momentum and energy

I hate to be fussy (but this is Phys-l afterall ;-)) about "conserved in the
collision" but the KE is the same immediately before and after but not
during. The deformation of the objects during the collision allows for a
form of PE.

Ken Fox

On 11/13/06, Jack Uretsky <jlu@hep.anl.gov> wrote:

I suggest that the definition of "elastic collision" be that kinetic
energy is conserved in the collision. This definition agrees with
accepted practice in every frame, classicly and quantum mechanically.
Regards,
Jack