Constant Acceleration Kinematics: A train starts from rest and accelerates uniformly until it has traveled 5.6 km and acquired a forward velocity of 42 m/s. The train then moves at a constant velocity of 42 m/s for 420 s. The train then slows down uniformly at 0.065 m/s2, until it is brought to a halt. The acceleration during the first 5.6 km of travel is closest to which of the following?
A. 0.16 m/s2
B. 0.14 m/s2
C. 0.17 m/s2
D. 0.19 m/s2
E. 0.20 m/s2
Answer: A
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