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Re: Conservation of ME and nonconservative forces



Yes, alluded to in S. & Z. (2nd ed.) p.28.

I only skimmed, but certainly the most complete analysis I've seen.

My "or smooth" should be "and flat."

bc (A contract worker at NPS (.navy.mil)

"Carl E. Mungan" wrote:

Bernard Cleyet wrote:

Very good Herb --

this is why a train has less friction than a rubber tyred auto.

for those who haven't thought about it -- the friction arises from the fact
that the rolling object and the surface rolled upon are not "infinitely"
hard (or smooth). I suspect in such a case, the ball would slide not roll.

Perhaps since you seem to be in the mood for this topic, you or John
D. might have some comments about:
http://physics.usna.edu/physics/faculty/mungan/Scholarship/RollingFriction.pdf
--
Carl E. Mungan, Asst. Prof. of Physics 410-293-6680 (O) -3729 (F)
U.S. Naval Academy, Stop 9C, Annapolis, MD 21402-5026
mungan@usna.edu http://physics.usna.edu/physics/faculty/mungan/