detailed solution

Part II. One rainy day, a car with a mass of 1250 kg moving at 20 m/s to the east hits the rear end of another car with a mass of 1610 kg moving at 8.0 m/s in the same direction. What is the final velocity, of the two cars if they stick together? What is the change in kinetic energy of the system? A 70.1 kg ice skater moving on ice at 4.62 m/s to the right hits from behind another 70.9 kg ice skater, who is initially at rest. After collision, the skaters move in the same direction at different speeds. The first skater moves at 1.30 m/s. What is the speed of the second skater? What is the total momentum of the skaters before collision