You are the design engineer in charge of the
Chapter 9, Problem 9.109(choose chapter or problem)
You are the design engineer in charge of the crashworthinessof new automobile models. Cars are tested by smashingthem into fixed, massive barriers at 45 km/h. A new modelof mass 1500 kg takes 0.15 s from the time of impact until itis brought to rest, (a) Calculate the average force exertedon the car by the barrier, (b) Calculate the average decelerationof the car.
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