Until a train is a safe distance from the station it must travel at 5 m/s. once the train is on open track it can speed up
to 45 m/s. if it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train? (round your answer to
the nearest whole number)
o 4 m/s2
o 5 m/s2
o 6 m/s2
o 7 m/s2
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