1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Radical Equation Problem

  1. Mar 21, 2009 #1
    1. The problem statement, all variables and given/known data

    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


    User Avatar
    Homework Helper

    hi stratosphere

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


    User Avatar
    Science Advisor

    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


    User Avatar
    Homework Helper

    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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook