90° 120° 10 60° 150° 30° 180° 10 8 6 4 2 0 2 4 6 8 10

An Introduction to Physical Science
14th Edition
ISBN:9781305079137
Author:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher:James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Chapter15: Place And Time
Section: Chapter Questions
Problem 11FIB
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We considered an application in which sailboat racers look for a sailing angle to a 10-knot wind that produces maximum sailing speed. This situation is now represented by the polar graph in the figure shown. Each point (r, θ) on the graph gives the sailing speed, r, in knots, at an angle θ to the 10-knot wind.What is the speed, to the nearest knot, of a sailboat sailing at a 180° angle to the wind?

90°
120°
10
60°
150°
30°
180°
10 8 6
4 2 0 2
4 6
8
10
Transcribed Image Text:90° 120° 10 60° 150° 30° 180° 10 8 6 4 2 0 2 4 6 8 10
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