The figure shows a swimmer who wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed of vr of the current in the river is 5 km/hr. Suppose that the swimmer's velocity relative to the watermakes an angle of θ= 45 degrees with the line from A to C, as indicated in the figure. Q: To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically in km/hr.
The figure shows a swimmer who wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed of vr of the current in the river is 5 km/hr. Suppose that the swimmer's velocity relative to the watermakes an angle of θ= 45 degrees with the line from A to C, as indicated in the figure. Q: To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically in km/hr.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The figure shows a swimmer who wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) is 200 m, the distance d2 (from C to B) is 150 m, and the speed of vr of the current in the river is 5 km/hr. Suppose that the swimmer's velocity relative to the watermakes an angle of θ= 45 degrees with the line from A to C, as indicated in the figure. Q: To swim directly from A to B, what speed us, relative to the water, should the swimmer have? Express the swimmer's speed numerically in km/hr.
Transcribed Image Text:d2
V = 5 km/hour
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Us
A
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