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Re: new problem



On Wed, 5 Mar 1997, Herb Schulz wrote:

Neither the Kinetic Energy alone or even the Mechanical Energy (Kinetic +
Potential) are conserved since the force applied through the rope does
(positive) work as the rope spirals inward.

I don't see the rope doing any work. It is always extended in a direction
perpendicular to the instantaneous velocity. And since there is no other
work being done ...

John

P.S. If the rope were doing work, I'd want to know where the energy is
coming from.
----------------------------------------------------------------
A. John Mallinckrodt email: mallinckrodt@csupomona.edu
Professor of Physics voice: 909-869-4054
Cal Poly Pomona fax: 909-869-5090
Pomona, CA 91768 office: Building 8, Room 223
web: http://www.sci.csupomona.edu/~mallinckrodt/