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Collision of two initially moving objects

  1. Jul 11, 2014 #1
    So I know how to solve for two initially moving objects that collide one way, but I was reading on this website another way to do it and I am not understanding a step. I've included a picture of the site and underlined the step I don't understand. I've tried a couple ways but I can't get it.

    Here is the link the the site as well

    http://farside.ph.utexas.edu/teaching/301/lectures/node76.html

    Thanks for reading.
     

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  2. jcsd
  3. Jul 12, 2014 #2

    Simon Bridge

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    "It is easily demonstrated that"... a bunch of equations that result.
    YOu should be able to work backwards from the equations - you have to apply the transform to com frame as suggested and then work through the consequences of conservation of momentum.
     
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