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Homework Help: Height of pendulum

  1. Oct 18, 2015 #1
    1. The problem statement, all variables and given/known data
    In the two-sphere arrangement of Figure, assume that sphere 1 has a mass of 51 g and an initial height of 10 cm, and that sphere 2 has a mass of 82 g. After sphere 1 is released and collides elastically with sphere 2, what height is reached by (a) sphere 1 and (b) sphere 2? After the next (elastic) collision, what height is reached by (c) sphere 1 and (d) sphere 2?

    I found A and B but not sure how to find c and d?

    2. Relevant equations


    3. The attempt at a solution

    Sqrt(2gh)= v

    ((m1-m2)/(m1+m2))v=v1
    (v1^2)/(2g)=H1

     
  2. jcsd
  3. Oct 18, 2015 #2

    haruspex

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    Science Advisor
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    Gold Member

    Since you have not attached the figure, you will need to describe the arrangement.
     
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