1. The driver of a vehicle traveling at 80 kph up a grade requires 9 m less to stop after he applies the brakes than the driver travelling at the same initial speed down the same grade. If the coefficient of friction between the tires and pavement is 0.50, what is the percent grade and what is the braking distance down the grade. V=80 kph brakes are applied S-9 V,=80 kph V2=0 brakes are -S- applied

1. The driver of a vehicle traveling at 80 kph up a grade requires 9 m less to stop after he applies the brakes than the driver travelling at the same initial speed down the same grade. If the coefficient of friction between the tires and pavement is 0.50, what is the percent grade and what is the braking distance down the grade. V=80 kph brakes are applied S-9 V,=80 kph V2=0 brakes are -S- applied

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter21: Pavement Management

Section: Chapter Questions

Problem 10P

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