Part A If the car's speed decreases at a constant rate from 60 mi/h to 50 mi/h in 3.0 s, what is the magnitude of its acceleration, assuming that it continues to move in a straight line? Express your answer in miles per hour squared to two significant figures. a = 1.2x10* mi/h? Submit Previous Answers Correct Part B What distance does the car travel during the braking period? Express your answer in feet to two significant figures.

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