Momentum (continued)

Momentum is also a vector quantity which means it has a magnitude and direction. Accident reconstructionists sometimes use momentum to determine how fast vehicles were going and how severe the collision was. Most collisions are at an angle and the pre-impact speeds can be determined using momentum and trigonometry.

Since this isn't a lesson on how to determine vehicle speeds, just be aware that the faster a vehicle travels the momentum is increased and by the same proportionate amount.