Answer:
C. The student is correct because momentum cannot be created or destroyed during an interaction, which means both carts must experience the same change in momentum.
Step-by-step explanation:
When there is a collision, the momentum of the system (both cars) will be conserved. It means that one car will gain momentum and the other will lose momentum, so the change in momentum that each car experienced will be equal in magnitude. So, the answer is:
C. The student is correct because momentum cannot be created or destroyed during an interaction, which means both carts must experience the same change in momentum.