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Finding ortibal period and orbital speed PLEASE HELP

  1. Apr 14, 2010 #1
    1. The problem statement, all variables and given/known data
    GPS (Global Positioning System) satellites orbit at an altitude of 2.6×107 .
    Find the orbital period.
    Find the orbital speed of such a satellite.

    2. Relevant equations
    I would like to know how to approach this. I don't know where to start w/o other figures.

    3. The attempt at a solution
    I went through a long, convoluted process and determined 2.8*10^29, which is entirely wrong. Please help!!
    Thank you in advance!
  2. jcsd
  3. Apr 14, 2010 #2


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