marshall104
Nov12-09, 09:33 AM
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!
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!