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K = kcm + kint

  1. Apr 10, 2014 #1
    So K = kcm + kint

    Since kcm relates to the center of mass, am I correct in my understanding to state
    kcm = 0.5mv2cm?

    What about kint? What does this variable refers to conceptually?
  2. jcsd
  3. Apr 10, 2014 #2


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    Presumable the "int" stands for "internal motion" ... vibrations, etc. Any coherent motion is a form of sound (phonons); incoherent internal motion shows up as heat.

    The kinetic theory of gasses is based on the K_int of the gas molecules; the K_com would be the wind ...
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