A train having a mass of 400 t travels at a constant speed along a straight track. At that speed, the tractive force required to overcome friction and wind resistance is 5 mN/N (or 5 N/KN). Calculate the tractive effort required to maintain the same speed: (a) on a level track, (b) up an incline of 1 in 150 and (c) down an incline of 1 in 300.

A train having a mass of 400 t travels at a constant speed along a straight track. At that speed, the tractive force required to overcome friction and wind resistance is 5 mN/N (or 5 N/KN). Calculate the tractive effort required to maintain the same speed: (a) on a level track, (b) up an incline of 1 in 150 and (c) down an incline of 1 in 300.

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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