Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Average distance form earth=384,403,000 meters

  1. Apr 3, 2010 #1
    http://en.wikipedia.org/wiki/Moon

    average distance form earth=384,403,000meters. Multiply by 2π=2,412,743,158meters
    orbital period=27days7hours43.1minutes=114,186sec

    This gives 2,412,743,158/114,186=21,130meters/sec linear speed.
    Wikipedia says 1,021meters/sec

    Where's the mistake?
     
    Last edited: Apr 3, 2010
  2. jcsd
  3. Apr 3, 2010 #2

    Vanadium 50

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor

    Re: Moon-confused

    1 day is 86400 seconds, so 27 days can't be 114186 seconds.
     
  4. Apr 3, 2010 #3
    Re: Moon-confused

    Cheers. Was hoping it was my mistake.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Average distance form earth=384,403,000 meters
  1. Sun earth distance (Replies: 3)

  2. Earth-Sun distance (Replies: 24)

Loading...