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Interpreting Results?

  1. May 5, 2009 #1
    Interpreting Results???

    1. The problem statement, all variables and given/known data

    A student recently submitted a homework solution in which he or she had calculated
    an angular velocity w = 0.0002 rad/s (for a satellite going around the Earth.) The
    student then found the period by using T = rad /w = 31415.92 seconds. Describe why
    both answers are unacceptable. This is not about any formulae — it is about the
    results that are given. (Your discussion should contain 4 or 5 sentences at the least.)

    2. Relevant equations


    3. The attempt at a solution

    I think scentific notation should be applied, but other than that??? Not sure what they want.

  2. jcsd
  3. May 5, 2009 #2


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    Homework Helper

    Re: Interpreting Results???

    When a satellite going around the Earth, the centripetal force is provided by the gravitational froce of Earth on the satellite.
    Hence m*w^2*R = GMm/R^2. Where R is the radius of the earth and M is the mass of the earth. Where close to the earth GM = gR^2 where g s the acceleration due to gravity. Using these values calculate w. and verify the result with the given value.
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