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College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 7MCP
Your boat departs from the bank of a river that has a swift current parallel to its banks. If you want to cross this river in the shortest amount of time, you should direct your boa:
- A. perpendicular to the current.
- B. upstream
- C. downstream
- D. so that it drifts with the current.
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Students have asked these similar questions
12. Two boys are at point X on one side of a river, 40 m wide and having a current of 1.0 m/s,
flowing as shown. Simultaneously, they dive into the water in an attempt to reach point Y,
directly opposite X. Both swim at 2.0 m/s relative to the water, but one directs himself so that his
net motion corresponds to XY, while the other keeps his body perpendicular to the current and
consequently lands at point Z. After landing, he runs along the shore to point Y at a speed of 6.0
m/s. Which boy arrives at Y first, and by how much time does he beat the other?
1.0 m/s-
4.
In still water, a boat has a velocity of 72 knots (nautical miles per hour) with a bearing of
054°. The water has a current that is flowing towards a bearing of 223° at a speed of 14
knots. Using a GEOMETRIC solution, determine the resultant velocity of the sail boat.
Include a well-labelled diagram.
8
Chapter 3 Solutions
College Physics (10th Edition)
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