a star orbited by two planets—planet A and planet B. The star is also orbited by a mysterious object, object X, that entered into the star’s gravitational field. The gravitational force between the star and planet A is the same as the gravitational force between the star and planet B. Explain why this is true

a star orbited by two planets—planet A and planet B. The star is also orbited by a mysterious object, object X, that entered into the star’s gravitational field. The gravitational force between the star and planet A is the same as the gravitational force between the star and planet B. Explain why this is true