In the construction of railroads, curvature of the track is measured in the following way. First a 100.0-ft-long chord is measured. Then the curvature is reported as the angle subtended by two radii at the endpoints of the chord. (The angle is measured by determining the angle between two tangents 100.0 ft apart; since each tangent is perpendicular to a radius, the angles are the same.) In modern railroad construction, track curvature is kept below 1.70°. What is the radius of curvature of a "1.70° curve"?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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In the construction of railroads, curvature
of the track is measured in the following
way. First a 100.0-ft-long chord is
measured. Then the curvature is reported
as the angle subtended by two radii at the
endpoints of the chord. (The angle is
measured by determining the angle
between two tangents 100.0 ft apart;
since each tangent is perpendicular to a
radius, the angles are the same.) In
modern railroad construction, track
curvature is kept below 1.70°. What is the
radius of curvature of a "1.70° curve"?
Io
Transcribed Image Text:In the construction of railroads, curvature of the track is measured in the following way. First a 100.0-ft-long chord is measured. Then the curvature is reported as the angle subtended by two radii at the endpoints of the chord. (The angle is measured by determining the angle between two tangents 100.0 ft apart; since each tangent is perpendicular to a radius, the angles are the same.) In modern railroad construction, track curvature is kept below 1.70°. What is the radius of curvature of a "1.70° curve"? Io
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