Ex. A car hits a tree at an estimated speed of 35 mi/h on a 3%downgrade. If skid marks of 100 ft are observed on pavement (f=0.45), followed by 250 ft on stabilized shoulder (f=0.2), estimate the initial speed of the vehicle just before the pavement skid was begun.

Ex. A car hits a tree at an estimated speed of 35 mi/h on a 3%downgrade. If skid marks of 100 ft are observed on pavement (f=0.45), followed by 250 ft on stabilized shoulder (f=0.2), estimate the initial speed of the vehicle just before the pavement skid was begun.

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

Ex. A car hits a tree at an estimated speed of 35 mi/h on a 3% downgrade. If skid
marks of 100 ft are observed on pavement (f=0.45), followed by 250 ft on stabilized
shoulder (f=0.2), estimate the initial speed of the vehicle just before the pavement
skid was begun.

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A car hits a tree at an estimated speed of 35 mi/h on a 3% downgrade. If skid marks of 100 ft are observed on pavement (f=0.45), followed by 250 ft on stabilized shoulder (f=0.2), estimate the initial speed of the vehicle just before the pavement skid was begun.
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A car hits a tree at an estimated speed of 35 mi/h on a 3% downgrade. If skid marks of 100 ft are observed on dry pavement (F = 0.45), followed by 250 ft (F = 0.20) on a grass-stabilized shoulder, estimate the initial speed of the vehicle just before the pavement skid was begun.
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