Question

In the absence of any external force the change in momentum is

Answer 1

Answer:

Thus, in the absence of a net external force acting on a collection of particles, their total momentum never changes; this is the meaning of the law of conservation of momentum

Explanation:

Answer 2

Answer:

Momentum never changes

Explanation:

in the absence of a net external force acting on a collection of particles, their total momentum never changes; this is the meaning of the law of conservation of momentum.