Modern cars have airbags to reduce the injury rate in accidents. Consider a crash in which the car is decelerated from 20 m/s to 0 m/s. a. If your mass is 75 kg, what is your change in momentum during this crash? b. If the crash takes place over a time of 0.1 seconds, what is the average net force on you over this time interval? c. The airbag allows you to decelerate more slowly in the accident, meaning that your body slows over a longer time of 1 second. What is the net force on your body in this case?