Math

Question00910.0009 \quad 10.0 points You are given two carts, A and B. They look identical, and you are told that they are made of the same material. You place A at rest on an air track and give B a constant velocity directed to the right so that it collides elastically with A. After the collision, both carts move to the right, the velocity of B being smaller than what it was before the collision.
What do you conclude?
1. need more information
2. The two carts are identical
3. Cart A is hollow
4. Cart B is hollow

Studdy Solution
For Cart B's velocity to decrease and for both carts to move in the same direction after the collision, Cart A must have a smaller mass than Cart B. This is because in an elastic collision, if one object is initially at rest and the other is moving, the object with the smaller mass will gain more velocity after the collision.
Based on the analysis, the conclusion is:
3. Cart A is hollow

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