For momentum to be conserved in a system it must
A) Experience no net external force.
B) Experience no dissipative forces like drag.
C) Be weightless
D) Not be connected to a motor.

Question

Quizplus · Accepted Answer

Momentum conservation in a system occurs when there is no net external force acting on it. External forces can change the total momentum of a system, so for momentum to be conserved, the system must not experience any net external force.

For Momentum to Be Conserved in a System It Must