A train of total mass equal to 500 Mg starts from rest and
Chapter 13, Problem 13.53(choose chapter or problem)
A train of total mass equal to 500 Mg starts from rest and accelerates uniformely to a speed of 90 km/h in 50 s. After reaching this speed, the train travels with a constant velocity. The track is horizontal and axle friction and rolling resistance result in a total force of 15 kN in a direction opposite to the direction of motion. Determine the power required as a function of time.
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