Final answer:
The question discusses how the impulse provided by safety features in vehicles, like airbags and seat belts, lowers the average force during a collision by extending the time over which the force acts. Calculation of specific forces would require additional data on the collision, which are not provided.
Step-by-step explanation:
Understanding Impulse in Vehicle Safety
The concept being discussed in the question pertains to the physics of safety features in vehicles, such as airbags and seat belts, and their role in reducing the forces exerted on passengers during a collision. The impulse provided by these safety features increases the time over which a force acts, thus reducing the average force experienced by a person. This is crucial as it reduces the likelihood of injury or fatality. When discussing the cumulative load and distance or 'movement curve' in the context of a lap belt, this relates to the force experienced over time and distance during a collision. Free contacts A and B mentioned in the airbag diagram could refer to the electrical contacts that remain unengaged until the sensor triggers the airbag deployment upon impact.
To calculate the forces experienced by the driver, Newton's second law of motion and the impulse-momentum theorem are applied. Without specific numerical values provided in the student's question, a purely theoretical explanation was given:
Plastic components and the ability for a car to crumple play significant roles in extending collision time and thereby reducing the force impact on passengers.