Re: CONSERVATION OF ENERGY, experiment

[Bob Sciamanda <Sciamanda@worldnet.att.net>]

LUDWIK KOWALSKI wrote:
> . . . 
> The bottom line is that K and R*x are not significantly different. 
> . . .
  This clearly illustrates (harking back to an old thread)  the
confusion 
that results when the Work-Energy Theorem of Newtonian Mechanics is 
confused with the First Law of Thermodynamics.  Given the situation 
(as I read you): R is the constant net force on the object as it "loses" 
K (kinetic energy) over a displacement x (in the direction of R), then K 
and R*x are numerically equal - and rigorously so, by Newton's laws of 
motion.  This is a purely mechanical (dynamics) question, and stands
quite 
apart from any conservation of energy postulate or thermodynamic
considerations.

If you want to make something (eg HEAT) out of that "lost K", then that
is 
a whole new ball of wax!
-- 
Bob Sciamanda		sciamanda@edinboro.edu
Dept of Physics		sciamanda@worldnet.att.net
Edinboro Univ of PA	http://www.edinboro.edu/~sciamanda/home.html
Edinboro, PA		(814)838-7185