In the event of an impact, the passenger compartment decelerates over a distance of about 1 m as the front of the car crumples. An occupant restrained by seat belts and air bags decelerates with the car... A 61 person is in a head-on collision. The car's speed at impact is 20 . Estimate the net force on the person if he or she is wearing a seat belt and if the air bag deploys.