1. Not finding help here? Sign up for a free 30min 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!

Newtons theory of gravity : satelite orbits and ellipses

  1. Nov 12, 2009 #1
    The figure shows two planets of mass m orbiting a star of mass M. The planets are in the same orbit, with radius r, but are always at opposite ends of a diameter.
    This is the equation eq. I used:

    mv^2/r=GMm/r^2+Gmm/(2r)^2

    This is what I came up with but it is not the right answer. Where did I go wrong?

    sqrt4pi^2/G(M+m)*r3/2

    Any help would be great!
     
  2. jcsd
  3. Nov 12, 2009 #2

    What are you trying to find ?
     
  4. Nov 12, 2009 #3

    ZapperZ

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    What figure?

    Zz.
     
  5. Nov 12, 2009 #4
    I'm sorry. I'm trying to find T the orbital period
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Newtons theory of gravity : satelite orbits and ellipses
  1. Satelites And Orbits (Replies: 4)

  2. Newton theory of gravity (Replies: 27)

Loading...