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

Multiple Choice

A train starts from rest and accelerates uniformly,until it has traveled 5.6 km and acquired a 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:

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