question: By exploding what the space probes get separated from their launchers?
distractor3: walls
distractor1: frames
distractor2: doors
correct_answer: bolts
support: Space probes may be separated from their launchers by exploding bolts. (They bolt away from one another. ) Suppose a 4800-kg satellite uses this method to separate from the 1500-kg remains of its launcher, and that 5000 J of kinetic energy is supplied to the two parts. What are their subsequent velocities using the frame of reference in which they were at rest before separation?.