Final answer:
In a car crash, safety features like seatbelts and crumple zones help protect passengers by increasing the time of impact and reducing the force on the occupants.
Step-by-step explanation:
In a car crash, the force experienced by the occupants can be minimized by increasing the duration of time over which the force acts. This is achieved through safety features like seatbelts and crumple zones that increase the time of impact. By increasing the time of impact, the force on the passengers is reduced, reducing the likelihood of serious injuries.