A train locomotive pulls a train with a mass of 1 40 10 7 kg on level rails The locomotive exerts a constant force of 8 10 10 5 N on the train How much time does it take to increase the speed of the train from rest to 70 0 km h

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A train locomotive pulls a train with a mass of 1.40 10 7 kg on level rails. The locomotive exerts a constant force of 8.10

A train locomotive pulls a train with a mass of 1.40 10⁷ kg on level rails. The locomotive exerts a constant force of 8.10 10⁵ N on the train. How much time does it take to increase the speed of the train from rest to 70.0 km/h?

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