What is the sequence of collisions that occurs in a vehicle crash?

In a vehicle crash, the sequence of collisions is crucial for understanding the dynamics of the impact and its effects on both the vehicle and its occupants.

The first collision occurs when the vehicle strikes another object, such as another vehicle, a pedestrian, or a stationary object like a tree or a wall. This collision involves the vehicle's structure and the external object and is fundamental in defining the nature and severity of the crash.

The second collision pertains to the occupants of the vehicle. Once the vehicle comes to a sudden halt due to the first collision, the occupants continue to move forward due to inertia. This leads to them striking the interior of the vehicle, which can include the steering wheel, dashboard, or windows. This collision is critical, as it typically results in injuries to the occupants.

The third collision involves the internal organs of the occupants. Following the second collision, as the body comes to a stop, the organs can continue moving relative to the skeletal structure. They can collide with the ribs and other bones, which can cause significant internal injuries, depending on the severity of the crash.

Recognizing that all these collisions occur in sequence illustrates the comprehensive understanding of crash dynamics and the potential for injury at different stages of the collision. Thus, the correct answer