5. Four hills A, B, C, and D having elevations 247, 236, 314, and 396 respectively. The distance of B, C, and D from A are 12 km, 45 km, and 60 km respectively Considering the earth's curvature and refraction of the earth. Compute the height of tower at A with a clearance of 3 m at C so that a 2 m tower at D will be intervisible from A.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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5. Four hills A, B, C, and D having elevations
247, 236, 314, and 396 respectively. The distance
of B, C, and D from A are 12 km, 45 km, and 60
km respectively
Considering the earth's curvature and refraction
of the earth.
Compute the height of tower at A with a
clearance of 3 m at C so that a 2 m tower at D
will be intervisible from A.
Transcribed Image Text:5. Four hills A, B, C, and D having elevations 247, 236, 314, and 396 respectively. The distance of B, C, and D from A are 12 km, 45 km, and 60 km respectively Considering the earth's curvature and refraction of the earth. Compute the height of tower at A with a clearance of 3 m at C so that a 2 m tower at D will be intervisible from A.
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