Two cars are traveling on level terrain at 72 mi/h on a road with a coefficient of adhesion of 0.85. The driver of car 1 has a 2.4-s perception/reaction time and the driver of car 2 has a 2.2-s perception/reaction time. Both cars are traveling side by side and the driver able to stop their respective cars in the same distance after first seeing a roadway obstacle (perception and reaction plus vehicle stoppi distance). If the braking efficiency of car 2 is 0.75, determine the braking efficiency of car 1 (in % with 2 decimals). (Assume minimum theoretical stopping distance and ignore aerodynamic resistance.)

Two cars are traveling on level terrain at 72 mi/h on a road with a coefficient of adhesion of 0.85. The driver of car 1 has a 2.4-s perception/reaction time and the driver of car 2 has a 2.2-s perception/reaction time. Both cars are traveling side by side and the driver able to stop their respective cars in the same distance after first seeing a roadway obstacle (perception and reaction plus vehicle stoppi distance). If the braking efficiency of car 2 is 0.75, determine the braking efficiency of car 1 (in % with 2 decimals). (Assume minimum theoretical stopping distance and ignore aerodynamic resistance.)

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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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

Two cars are traveling on level terrain at 72 mi/h on a road with a coefficient of adhesion of 0.85. The driver of car 1 has a 2.4-s
perception/reaction time and the driver of car 2 has a 2.2-s perception/reaction time. Both cars are traveling side by side and the drivers are
able to stop their respective cars in the same distance after first seeing a roadway obstacle (perception and reaction plus vehicle stopping
distance). If the braking efficiency of car 2 is 0.75, determine the braking efficiency of car 1 (in % with 2 decimals). (Assume minimum
theoretical stopping distance and ignore aerodynamic resistance.)

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