A large log became visible to a driver at a distance of 150 m. Assume the driver’s perception-reaction time of 1.8 sec, an initial speed of 85 kph and the coefficient of friction is 0.55. Determine whether the driver would hit the rock if: a. The roadway grade is 8 % b. The roadway grade is

A large log became visible to a driver at a distance of 150 m. Assume the driver’s perception-reaction time of 1.8 sec, an initial speed of 85 kph and the coefficient of friction is 0.55. Determine whether the driver would hit the rock if: a. The roadway grade is 8 % b. The roadway grade is

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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Question

A large log became visible to a driver at a distance of 150 m. Assume the driver’s perception-reaction
time of 1.8 sec, an initial speed of 85 kph and the coefficient of friction is 0.55. Determine whether the
driver would hit the rock if:
a. The roadway grade is 8 %
b. The roadway grade is level
c. The roadway grade is -12%

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