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Homework Help: Find the velocity of an object to become a satellite of Eart

  1. Feb 7, 2015 #1
    1. The problem statement, all variables and given/known data
    An object stand in the height 500km from the surface of the Earth. What velocity should it have to become an earth satellite?

    2. Relevant equations

    3. The attempt at a solution
    v2=a*r=6,9*107=>x=8306m/S , but the solution is 7600m/S
  2. jcsd
  3. Feb 7, 2015 #2
    What's a? What's r? Watch units and you got your algebra wrong.
  4. Feb 8, 2015 #3


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    2017 Award

    Staff: Mentor

    And what is x?

    I would expect an error at the value of "a" you used.
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