If momentum is conserved, what happened to velocity when mass changes?

A. Velocity stays the same.

B. Velocity always increases.

C. Velocity always decreases.

D. Velocity changes.

The momentum of an object is given in terms of its mass and its velocity. The law of conservation of momentum says that the net momentum of a system remains conserved for an isolated system.

Momentum is given by:

p = m * v

If p is conserved, velocity is inversely proportional to the mass of an object. When mass changes, velocity also changes but inversely.