13. CURVATURE AND REFRACTION.A lifeguard is standing on a watchtower at the edge. of the water such that his eye level Is 3.50 m above sea level. If a life raft starts floating out to sea, determine how far out it could go before it disappears from the sight of the lifeguard. Assume that the sea is calm and a pair of blnoculars is available to the movement of the raft. tract

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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13. CURVATURE AND REPRACTION. A lifeguard is standing on a
watchtower at the edge. of the water such that his eye level
Is 3.50 m above sea level. If a 1ife raft starts floating
out to sea, determine how. far out it could go before it
disappears from the sight of the lifeguard. Assume that the
sea is calm and a pair of binoculars is available to
the movement of the raft.
tract
Transcribed Image Text:13. CURVATURE AND REPRACTION. A lifeguard is standing on a watchtower at the edge. of the water such that his eye level Is 3.50 m above sea level. If a 1ife raft starts floating out to sea, determine how. far out it could go before it disappears from the sight of the lifeguard. Assume that the sea is calm and a pair of binoculars is available to the movement of the raft. tract
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