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Finding combined kinetic energy

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  1. Oct 13, 2015 #1
    image.jpg 1. The problem statement, all variables and given/known data


    2. Relevant equations
    In picture

    3. The attempt at a solution
    Is my setup correct for finding the combined kinetic energy in part a)
     
  2. jcsd
  3. Oct 14, 2015 #2

    haruspex

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    Check your signs. Better still, think about the meanings of the terms. Does the gained spring energy increase or reduce the kinetic energy?
     
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