The condition necessary for the conservation of linear momentum in a given system is that
A) energy is conserved.
B) one body is at rest.
C) the net external force is zero.
D) internal forces equal external forces.
E) none of these is correct.

Question

Quizplus · Accepted Answer

Conservation of linear momentum is only possible when there is no net external force acting on the system. Therefore, option C is the correct choice. A, B, and D are not necessary conditions for the conservation of linear momentum.

The Condition Necessary for the Conservation of Linear Momentum in a Given