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A Train Starts from Rest and Accelerates Uniformly Until It

Question 90

Multiple Choice

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/ 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/s<sup>2</sup>. 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/ B) 0.14 m/ C) 0.17 m/ D) 0.19 m/ E) 0.20 m/
B) 0.14 m/ 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/s<sup>2</sup>. 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/ B) 0.14 m/ C) 0.17 m/ D) 0.19 m/ E) 0.20 m/
C) 0.17 m/ 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/s<sup>2</sup>. 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/ B) 0.14 m/ C) 0.17 m/ D) 0.19 m/ E) 0.20 m/
D) 0.19 m/ 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/s<sup>2</sup>. 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/ B) 0.14 m/ C) 0.17 m/ D) 0.19 m/ E) 0.20 m/
E) 0.20 m/ 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/s<sup>2</sup>. 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/ B) 0.14 m/ C) 0.17 m/ D) 0.19 m/ E) 0.20 m/

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