A surveyor measures the distance across a straight river by the following method. Starting directly across from a tree on the opposite bank, she walks d = 120 m along the riverbank to establish a baseline. Thenshe sights across to the tree. The angle from her baseline to the tree is 0 = 26.0°. How wide is the river?m

Answered: A surveyor measures the distance across…

Physics for Scientists and Engineers

10th Edition

ISBN:9781337553278

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter1: Physics And Measurement

Section: Chapter Questions

Problem 6P: A surveyor measures the distance across a straight river by the following method (Fig. P1.6)....

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A surveyor measures the distance across a straight river by the following method. Starting directly across from a tree on the opposite bank, she walks d = 120 m along the riverbank to establish a baseline. Then
she sights across to the tree. The angle from her baseline to the tree is 0 = 26.0°. How wide is the river?
m

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Consider a right angled triangle. Here, tan theta is the ratio of opposite side to the adjacent side which is the ratio of the width of the river to distance covered by the surveyor.

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