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Re: [Phys-l] rolling friction

On Feb 18, 2006, at 6:38 AM, John Denker wrote:

. . . Without additional context, it is impossible
to know which of these quantities is intended
when people talk about "the" coefficient of
rolling friction. . . .

Sometimes the context has to be guesses. My guess is that it was in the context of the negative acceleration of a nearly rigid rolling wheel. Why doesn't it keep rolling forever along a straight (also nearly rigid) path?

Ludwik Kowalski
Let the perfect not be the enemy of the good.