Impact Speed Calculator (Accident)

Impact speed can be calculated using the deformation distance and vehicle mass through energy conservation principles. The kinetic energy before impact equals the energy absorbed during deformation.

The energy conservation method is typically most accurate as it considers the vehicle's kinetic energy and how it's absorbed during collision. Force-based methods require precise force measurements which can be challenging to obtain.

Heavier vehicles carry more kinetic energy at the same speed, resulting in greater impact forces and potentially more damage. Mass is a critical factor in determining collision severity.

Measure the maximum crush depth from the original vehicle profile to the most deformed point. This represents the distance over which the impact energy was absorbed.

Accuracy depends on measurement precision and method used. Energy-based calculations can be within 10-15% when deformation is measured accurately, though real-world factors may introduce additional uncertainty.

Key factors include measurement accuracy of deformation, vehicle structural properties, impact angle, and environmental conditions. Multiple impact points or secondary collisions can complicate calculations.

This calculator works best for frontal impacts with significant deformation. Side impacts, rollovers, and multi-vehicle collisions require specialized analysis considering different energy absorption mechanisms.