(Answered) A city planner is working on the redesign of a hilly

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A city planner is working on the redesign of a hilly portion of a city. An important consideration is how steep the roads can be so that even low-powered cars can get up the hills without slowing down. A particular small car, with a mass of 920 kg, can accelerate on a level road from rest to 22m/s (79km/h ) in 13.0s

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