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Description: A freight train has a mass of 1.2 ✕ 107 kg. If the locomotive can exert a constant pull of 6.9 ✕ 105 N, how long does it take to increase the speed of the train from rest to 70 km/h?

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A freight train has a mass of 1.2 ✕ 107 kg. If the locomotive can exert a constant pull of 6.9 ✕ 105 N, how long does it take to increase the speed of the train from rest to 70 km/h?

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter4: The Laws Of Motion

Section: Chapter Questions

Problem 2CQ: If a car is traveling due westward with a constant speed of 20 m/s, what is the resultant force...

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