Momentum is conserved in any system that is
A) closed and isolated from the rest of the universe.
B) directly visible from somewhere in the universe.
C) a well-defined portion of the known universe.
D) a yet-to-be discovered segment of the universe.
E) at rest when compared with the rest of the universe.

Question

Quizplus · Accepted Answer

Momentum is conserved in a system that is closed and isolated from external forces. This means no external forces are acting on the system, allowing the total momentum before and after any event within the system to remain constant.

Momentum Is Conserved in Any System That Is