Question

Which is always true in a closed system?(1 point)
Responses

Mass is not conserved.
Mass is not conserved.

Momentum is conserved.
Momentum is conserved.

Acceleration is not constant.
Acceleration is not constant.

Velocity is constant.

Answer 1

In a closed system, the statement that is always true is:

**Momentum is conserved.**

In a closed system (where no external forces are acting), the total momentum remains constant.