3D Defensive Driving

Defensive Driving Traffic Safety Tips

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Force of Impact

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.