Civil Engineering > GATE 2019 SET-1 > Highway Engineering
The coefficient of average rolling friction of a road is fr and its grade is +G%. If the grade of this road is doubled, what will be the percentage change in the braking distance (for the design vehicle to come to a stop) measured along the horizontal (assume all other parameters are kept unchanged)?
A
(0.01G / (fr + 0.02G)) × 100
B
(fr/ (fr + 0.02G)) × 100
C
(0.02G / (fr + 0.01G)) × 100
D
(2fr / (fr + 0.01G)) × 100

Correct : a

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