Example 2 (N84/P2/Q7) Binary Stars
activity:select from the down-drop menu "M1=M2=1,circular_orbit"
click play and observe the motion, noting down the magnitude of the forces (green arrows) on each mass M1 and M2.
let assume in the simulation that
the distance between the masses is
the force is therefore, F
therefore net force on each M1 star is F
similarly, the net force on M2 star is F
in astronomy terms, notice the force on M1, F