A train starts from rest and accelerates uniformly,until it has traveled 2.1 km and acquired a velocity of 24 m/s.The train then moves at a constant velocity of 24 m/s for 400 s.The train then slows down uniformly at 0.065 m/s²,until it is brought to a halt.The distance traveled by the train while slowing down,in km,is closest to: A)4.4 B)4.2 C)4.0 D)3.8 E)3.6

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Quizplus · Accepted Answer

The train travels 2.1 km while accelerating, 9.6 km while moving at constant velocity, and 3.8 km while slowing down. The total distance traveled is 2.1 + 9.6 + 3.8 = 15.5 km.

A Train Starts from Rest and Accelerates Uniformly,until It Has