The diagram below is a graph of the energy of a system of a planet interacting with a star. The gravitational potential energy Ug is shown as the thick curve, and plotted along the vertical axis are various values of K+Ug r. from star to planet B- Suppose that K+Ug of the system is A. Which of the following statements are true? E When the separation batween the two bodies is r2. the kinetic energy of the system is (A - 8). O The planet will ascape. * The system is a bound system; the planet can never escape. * The potential energy of the system decreases as the planet moves from ri to r2. * The kinetic energy of the system is greater when the distance betvreen the star and planet is ra than when the distance between the two bodies is r2. O when the separation between the two bodies is r2, the kinetic energy of the system is (8 - C). Suppose instead that K+Ug of the system is B. Which of the following statements are true? O The planet and star cannot get farther apart than r2. O This is not a bound system: the planet can ascape. O When the separation between the planet and star is , the kinetic energy of the system is zero. O when the separation between the planet and star is ra. the potential energy of the system is zero.