A speeding car collides with a wall (attached to Earth). Consider the car-Earth system to be isolated. A loud sound is produced in the collision, and the car is deformed. What can you say about the momentum of the car-Earth system in this case?

Question

anonymous · Answer

A. The total momentum of the system is conserved.
B. The total momentum of the system is not conserved.
C. The total momentum of the system is zero.
D. The total momentum of the system is negative.

anonymous · Answer

the total momentum is always conserved as long as there is no outside force, In this case there isn't

anonymous · Answer

Basically, the momentum of the speeding car is turned into a loud sound. So, the momentum is conserved.