DO NOT WRITE ON THIS PAPER DO ALL OF YOUR WORK IN YOUR LAB BOOK For each question, one student does a drawing for the question, one student selects the formula, and a third student solves the formula (round all answers to 2 significant figures).
1) In space, a small landing craft with a mass of 100 kg is docked to a large satellite with a mass of 2000 kg. When the landing craft separates from the satellite, it has a final velocity of 4.0 m/s. What is the final velocity of the satellite?
2) A model railroad car with a mass of 0.50 kg has a velocity of 1.0 m/s when it collides and connects with another railroad car that has a mass of 1.0 kg. What is the final velocity of the two cars together?
3) One person with a mass of 50 kg is riding a sled down a hill at a constant velocity of 6.0 m/s when they are hit from behind by another sled with three people on it and a total mass of 200 kg. If they stick together after they collide and move at 10 m/s, what was the initial velocity of the heavier sled? 4) On a lake, a person jumps off a stationary raft into the water. If the person’s mass is 75 kg and their forward velocity is 1.0 m/s, what is the mass of the raft if it moves backward at 8.0 m/s?
