What does secondary contacts refer to in a collision?

Secondary contacts in a collision refer to subsequent impacts that occur after the initial point of contact between two vehicles. When a collision happens, the first impact is often referred to as the primary collision. After this initial impact, the vehicles may continue to move and collide with other objects, vehicles, or each other, resulting in what is known as secondary contacts. This aspect is important in understanding the dynamics of an accident and assessing the extent of damage and injuries that may result from impacts that occur after the primary collision.

The other choices do not accurately capture the definition of secondary contacts; the initial impact is defined as the primary contact, the final position of a vehicle relates to vehicle movement post-collision, and the distance traveled before contact pertains to the pre-collision scenario rather than any interactions occurring during or after the collision itself.