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Relating Distance and Speed for orbits

  1. Feb 21, 2008 #1
    Given just the distances from the sun of two comets for example, and the speed of one of the objects, how could one relate these two objects in order to find the speed the other object is traveling at?
     
  2. jcsd
  3. Feb 21, 2008 #2

    mgb_phys

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    Keplers third law?
     
  4. Feb 21, 2008 #3

    Janus

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    It depends, are the comets in simular orbits?
     
  5. Feb 21, 2008 #4
    If the comets are in the same orbit.
     
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