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What fraction of the object's kinetic energy is lost during a single collision?

  1. Mar 15, 2009 #1
    1. The problem statement, all variables and given/known data

    The coefficient of the restitution of an object is defined as the ratio of its outgoing to incoming speed when the object collides with a rigid surface. For an object with a coefficient of 0.59, what fraction of the object's kinetic energy is lost during a single collision?

    2. Relevant equations

    KE = 1/2mv^2
    kinetic friction coefficient = Fkinetic/Fnormal

    3. The attempt at a solution

    I am so confused... I hate these problems where the information isnt given to solve for something,someone point me in the right direction please
     
  2. jcsd
  3. Mar 15, 2009 #2
    Coefficient of restitution:

    [tex] \frac{v_{final}}{v_{initial}}=0.59 [/tex]

    You are looking for

    [tex] \frac{K_{final}}{K_{initial}} [/tex]

    The information you need is given.
     
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