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Jul 26, 2015 at 2:58 comment added Si Chen Very true, but as I already mentioned the string being massless and the peg frictionless... you can see it's just idealisations here, a real life situation taken to some convenient limit. I'm just not sure which limit is right.
Jul 26, 2015 at 1:29 review First posts
Jul 26, 2015 at 1:33
Jul 26, 2015 at 1:29 history answered Joseph Henderson CC BY-SA 3.0