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tiny-tim
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Feb11-12, 12:46 PM
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Simple Torque from Gravity Problem


Quote Quote by sacher View Post
I just don't see how (as in your example) how the center of mass will ever be anywhere other than on the left side.
it doesn't matter how far left or right it goes

what matters is whether it goes up or down, and if it stays where it is, there's no extra energy
I guess I'm coming to the conclusion that not only is the system able to run indefinitely (without friction) but wouldn't it accelerate?
yes, of course if you ignore friction almost any system will run indefinitely

but it certainly won't accelerate