You are the design engineer in charge of the crashworthiness ofnew automobile models. Cars are tested by smashing them into fixed,massive barriers at 57 km/h (35 mph ). A new model of mass 1300 kgtakes 0.12 s from the time of impact until it is brought torest. a) Calculate the average force exerted on the car by thebarrier. b) Calculate the average deceleration of the car. . . .
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