10:05 PM G 25 https://docs.google.com/forms/d/e/1 10 11. Two carts, A and B, are at resting on an air track (negligible friction). They look identical and you are told that they are made of the same material. You need to determine if the carts have the same mass without pickup up either cart. You leave A at rest and give Ba constant velocity so that it collides elastically with A. After the collision, both carts move to the right; however, you notice that the velocity of B is smaller than what it was before the collision. What do you conclude? * O (A) Cart A is hollow. (B) Cart B is hollow. O (C) The two carts have identical mass 12. A moving freight car runs into an

10:05 PM G 25 https://docs.google.com/forms/d/e/1 10 11. Two carts, A and B, are at resting on an air track (negligible friction). They look identical and you are told that they are made of the same material. You need to determine if the carts have the same mass without pickup up either cart. You leave A at rest and give Ba constant velocity so that it collides elastically with A. After the collision, both carts move to the right; however, you notice that the velocity of B is smaller than what it was before the collision. What do you conclude? * O (A) Cart A is hollow. (B) Cart B is hollow. O (C) The two carts have identical mass 12. A moving freight car runs into an