Constant Acceleration Kinematics: A train starts from rest and accelerates uniformly until it has traveled 2.1 km and acquired a forward 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 is closest to
A. 4.4 km.
B. 4.2 km.
C. 4.0 km.
D. 3.8 km.
E. 3.6 km.
Answer: A
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