An astronaut is in equilibrium when he is positioned 140 km from the center of asteroid c and 581 km from the center of asteroid y, along the straight line joining the centers of the asteroids. what is the ratio of the masses x/y of the asteroids? a. 17.2b. 0.0581c. 0.241d. 4.15

Wo small variable-thrust jets are actuated to keep the spacecraft angular velocity about the z-axis constant at ? 0 = 1.16 rad/s as the two telescoping booms are extended from r1 = 1.18 m to r2 = 4.69 m at a constant rate over a period of 124 seconds. the small 19-kg experiment modules at the ends of the booms may be treated as particles, and the mass of the rigid booms is negligible. determine the necessary thrust t for each jet as a function of time where t = 0 is the time when the telescoping action is begun. after you have the general expression for t, answer the questions. show work.