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Old 08-07-2013, 01:23 PM   #36
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Join Date: Dec 2012
Posts: 566

Originally Posted by Cheetah View Post
It seems that most of the formulas and calculators are using hard collision [...].
I can't help but think that the many diagrams of lines and circles in books circumscribed the analysis, as if, because we were shown these as representations of a racket-to-ball collision, we ought to think with them. It would be so much more interesting if that explanation were true, but I suspect it's a question of complexity: balls and strings bend in many ways and we're caught with that, unable to related to it because nothing else compares in our every day lives.
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