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Derivation of Impulse and Momentum

  1. Oct 27, 2009 #1
    Show that the kinetic energy of an object can be written in terms of the momentum as
    KE = p^2/2m.


    2. Relevant equations

    KE = 1/2MV^2

    3. The attempt at a solution
    To be honest, I don't know where to even start with this problem. It equals PV/2 but I still need to find a way to derive p^2/2m
     
  2. jcsd
  3. Oct 27, 2009 #2

    Doc Al

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    Staff: Mentor

    What's the definition of p?
     
  4. Oct 27, 2009 #3
    p=mv
     
  5. Oct 28, 2009 #4

    Doc Al

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    Staff: Mentor

    Now write v in terms of p and make use of it.
     
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