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

question 36

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

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