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A train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward velocity of The train then moves at a constant velocity of for 400 s. The train then slows down uniformly at until it is brought to a halt. The distance traveled by the train while slowing down is closest to A train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward velocity of The train then moves at a constant velocity of for 400 s. The train then slows down uniformly at until it is brought to a halt. The distance traveled by the train while slowing down is closest to 3.8 km. 4.2 km. 3.6 km. 4.4 km. 4.0 km.

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Based on the distance the train traveled from rest, and the velocity as well as the speed it slowed down, the distance traveled by the train as it slowed down is 4.4 km.

How far did the train go as it slowed down?

This can be by the formula:

= Constant velocity ² / (2 x Speed while slowing down)

Solving gives:

= 24² / (2 x -0.065)

= 576 / (0.13)

= 4,431 m

= 4.4 km

Find out more on distance while slowing down at https://brainly.com/question/13445169.

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