Q. A 35 g bullet moving at 475 m/s strikes a 3 kg bag of flour that is on ice, at rest. The bullet passes through the bag, leaving at 250 m/s. How fast is the bag moving while the bullet exits?
Q. One way to measure on another planet or moon by remote sensing is to measure how long it takes an object to fall a given distance. A lander vehicle on a distant planet records the fact that it takes 3.17 for a ball to fall freely 11.26, starting from rest. What is the acceleration because of gravity on that planet? Express your answer in m/s^2.