When designing seatbelts, an estimate of expected load is initially made and is then evaluated during a crash test. a) Assuming that an automobile initially travelling at 80 km/hr is brought to a stop in 120 ms determine the average impulse force exerted by a 100 kg man on the belt. b) Assuming the change in force exerted over time follows the diagram below, what would be the maximum force exerted on the belt. (Hint: Assume the impulse is still equal to the average impulse from the above question) c) How does the force change if a female of average mass was in the front seat? Or yourself? F (kg) f (is) 110