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Kinetic energy of an object

  1. Nov 5, 2005 #1
    Why is it that even if you include a mass correction factor in 0.5mv^2, you get the wrong answer when v is very high? Thanks in advance.
     
  2. jcsd
  3. Nov 5, 2005 #2

    mathman

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    Total kinetic energy is mc2-m0c2. When you expand the Lorentz factor, the classical k.e. is just the first term.
     
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