Below is a question I recently got wrong, and the (automated) feedback. Since the stars are in a stable configuration, I realize that the forces must be equal, but I thought that the differing gravitational forces were balanced by the centripetal forces of the orbit (the smaller star being less massive but moving faster to compensate). In the question, it asks specifically for the gravitational force. The big star is more massive and so will have a larger gravitational pull on the small star (and everything else in the universe). This has always confused me. Can someone confirm that I'm wrong and help me understand why?