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Homework Help: Celestial mechanics question

  1. Dec 31, 2005 #1


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    Homework Helper

    I've bumped into a little problem while solving some tests for my physics course, so I'd appreciate some help :) :
    Consider an artificial satellite circling around the Earth; how much times is the absolute value of it's gravitational potential energy greater than it's kinetic energy?
  2. jcsd
  3. Dec 31, 2005 #2
    Write down the expressions for gravitational potantial energy (say Eg) and the kinetic energy (say Ek).

    Question is what is 'n' where

    Eg * n = Ek

    You will have to use the equilibrium condition for the orbital motion of the satilite around the earth to get rid of the velocity from Ek.
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