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: Simple question about rotational motion

  1. Dec 26, 2011 #1
    Its not actually a homework . i am just wondering .
    If we have 2 masses M and m where m rotates about M on either orbit1 of radius R with speed V or orbit 2 of radius r with seepd v , wouldn't its speed ratio V/v equal the following

    V/v = (sqrt(GM/R))/(sqrt(GM/r)) where G is gravitation constant :/ ??
  2. jcsd
  3. Dec 26, 2011 #2
    Nvm what is written . It is true for Circular orbitals only :)
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook