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Radical Equation Problem

  1. Mar 21, 2009 #1
    1. The problem statement, all variables and given/known data
    86300=[tex]\frac{86400}{1/\sqrt{1-(v/299000000){2}}}[/tex]


    2. Relevant equations



    3. The attempt at a solution
    When I square each side I get an astronomicly high number.
     
  2. jcsd
  3. Mar 22, 2009 #2

    lanedance

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    hi stratosphere

    have you tried dividing both sides by 86400 first?
     
  4. Mar 22, 2009 #3

    HallsofIvy

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    Or, better, dividing both sides by 86300 and then multiplying both sides by that square root.

    And, is that
    [tex]\sqrt{1- (v/299000000)2}[/tex]
    supposed to be
    [tex]\sqrt{1- (v/299000000)^2}[/tex]?
     
  5. Mar 22, 2009 #4
    Yah I meant to make it an exponent.
     
  6. Mar 23, 2009 #5

    Mentallic

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    If you're attempting to use the relativity equations (I'm guessing to find length contraction?), rather than using metres/second for the speed of light and resulting in astronomically high numbers, or better yet, converting the speed of light into micrometres/year; why not just leave it as c, and after solving for c, substitute whatever unit of measurement you want in place for it.
     
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