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Perfectly Elastic Collision

  1. May 3, 2016 #1
    1. The problem statement, all variables and given/known data
    Two balls collide in a perfectly elastic collision. Ball 1 has a mass of 3.5kg and is initially travelling at a velocity of 5.4m/s
    . It collides head-on with stationary ball 2 with mass 4.8kg. Determine the final velocity of ball 2.

    Given: m1=3.5kg
    vi1=5.4m/s


    m2=4.8kg
    vi2=0m/s

    2. Relevant equations
    See attached pictures

    3. The attempt at a solution
    See attached pictures IMG_6159.jpg IMG_6161.jpg . I don't know how to solve the problem beyond what I've already done. I'm stuck.​
     
  2. jcsd
  3. May 3, 2016 #2

    BvU

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    Science Advisor
    Homework Helper
    Gold Member

    Can't read it. Momentum conservation and conservation of kinetic energy should be enough to work out this exercise. Postpone inserting numbers as long as reasonable, so you can check the relationships you get (dimension, limiting cases).
    Type it out if you want more guidance (at least, from folks like me, and also from folks who don't even try to read photographed solution attempts at all).
     
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