Difference between relatavistic kinetic energy and normal kinetic energy

  1. I was looking at the relativistic energy of an electron and noticed that the formula for kinetic energy is:

    K.E. = mc^2 -m0c^2

    How is this related to the kinetic energy for low speed particles?
    Does anyone have a link to the proof?
  2. jcsd
  3. nicksauce

    nicksauce 1,275
    Science Advisor
    Homework Helper

    This can be written as (Gamma - 1) m_0c^2. Do a taylor expansion of gamma and the result immediately follows.
  4. jtbell

    Staff: Mentor

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