Question: A train travels at a rate of 13 meters per second (m/s). Over the next 60 seconds, the speed of the train increases to speed to 22 m/s. What is the average rate of acceleration of the train?

  Options: 
 A. 0.15 m/s^2
 B. 0.21 m/s^2
 C. 0.36 m/s^2
 D. 0.58 m/s^2
Answer: A