College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Constants
Part A
(Figure 1)A swimmer wants to cross a river, from point
A to point B, as shown in the figure. The distance di
from A to C) is 200 m, the distance d2 (from C to B) is
150 m, and the speed vr of the current in the river is 5
km/hour. Suppose that the swimmer's velocity
relative to the water makes an angle of
θ-45 degrees with the line from A to C, as
indicated in the figure
To swim directly from A to B, what speed us, relative to the water, should the swimmer have?
Express the swimmer's speed numerically, to three significant figures, in kilometers per hour.
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Transcribed Image Text:Constants Part A (Figure 1)A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance di from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed vr of the current in the river is 5 km/hour. Suppose that the swimmer's velocity relative to the water makes an angle of θ-45 degrees with the line from A to C, as indicated in the figure To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically, to three significant figures, in kilometers per hour. View Available Hint(s) Figure 1 of 1> km/hour Submit Provide Feedback v, 5 km/hour
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