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Homework Help: Collision physics problem

  1. May 8, 2008 #1
    1. The problem statement, all variables and given/known data
    A mass a of 10 kg mass, is attached by a cord to B. When released A swings down and collides with mass c of 20 kg mass which is vertically below B. if the coefficient of restitution is 0.5 and A and C are assumed to be point masses, determine the velocity of A and C immediately after impact.

    Answer is - A 0 m/s, C- 3.13m/s but i do not know hot to get it.

    2. Relevant equations

    3. The attempt at a solution

    I know that we evaluate the situation before impact and after impact.
    Can someone help? Also I need to know if it is elastic or not.
  2. jcsd
  3. May 8, 2008 #2


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  4. May 8, 2008 #3
    so that means that we have to find the difference in the initial velocity and final velocity for both objects right?
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