The figure shows a red row boat (the dot) that needs to cross a river. The boat can be rowed with an average constant speed of 6 ft/s in still water. Let W = 40 ft, d = 30 ft, and v = 2 ft/s (the constant river speed). N W / IE h d N B | U. Figure 10.2: CrossRiver.png (a) If the boat begins at A and must make landfall landfall at point B, what angle should the boat be pointed and how long will it take to cross? Solution lies between (19.688, 6.444) and (23.112, 7.5896) (b) If the rower thinks there may be dangerous creatures in the stream that might capsize the boat, she wants to make landfall as quickly as possible and doesn't care where that is. What angle should she point the boat and how long will it take to cross?Solution lies between (-0.12, 6.0003) and (0.1, 7.00035)
The figure shows a red row boat (the dot) that needs to cross a river. The boat can be rowed with an average constant speed of 6 ft/s in still water. Let W = 40 ft, d = 30 ft, and v = 2 ft/s (the constant river speed). N W / IE h d N B | U. Figure 10.2: CrossRiver.png (a) If the boat begins at A and must make landfall landfall at point B, what angle should the boat be pointed and how long will it take to cross? Solution lies between (19.688, 6.444) and (23.112, 7.5896) (b) If the rower thinks there may be dangerous creatures in the stream that might capsize the boat, she wants to make landfall as quickly as possible and doesn't care where that is. What angle should she point the boat and how long will it take to cross?Solution lies between (-0.12, 6.0003) and (0.1, 7.00035)
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 76P: A small plane flies at 200 km/h in still air. If the wind blows directly out of the west at 50 km/h,...
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