A 6kg green ball with a speed of 2 m/s travels to the right and strikes a yellow ball of 3kg initially at rest. After the balls collide, the green ball continues to the right with a speed of 1 mls and the yellow ball moves to the right with a speed of 2 m/s Which of the statements is true? 1, The type of collision cannot be determined from the information given. 2. THe collision was totally inelastic. 3. The collision was inelastic. I think it is 3 but I am not certain. An open cart on a level surface is rolling without fricitonal loss through a vertical downpour of rain. As the cart rolls, rainwater accumulates in the cart. The mass will: 1. Decrease because of conservation of momentum. 2. Decrease because of conservation of mechanical energy. 3. Remain the same. I think it is 1. So you know - I am not cheating. I already did the quiz and got these questions wrong.