Answered: (90 + a) km/h 20 Mg 25 Mg A В Figure Q1…

Engineering

Civil Engineering

(90 + a) km/h 20 Mg 25 Mg A В Figure Q1 (a)

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter8: Intersection Control

Section: Chapter Questions

Problem 19P

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Concept explainers

Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

A light train made up of two cars is traveling at a speed of (90 + a) km/h where a =7 when the brakes are applied to both cars. Knowing that car A has a mass of 25000 kg and car B has a mass of 20000 kg, and that the braking force is 30 kN on each car, as shown in Figure Q1 (a). Determine the distance travelled by the train before it comes to a stop

(90 + a) km/h
20 Mg
25 Mg
A
В
Figure Q1 (a)

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