A man points his rowboat north, straight across a river of width 114.3 m.  The river flows due east.  The man starts across, rowing steadily at 0.90 m/s @ north and reaches the other side of the river at a point 207 m downstream from his starting point.  What is the speed of the river?

Glencoe Physics: Principles and Problems, Student Edition
1st Edition
ISBN:9780078807213
Author:Paul W. Zitzewitz
Publisher:Paul W. Zitzewitz
Chapter5: Displacement And Force In Two Dimensions
Section5.1: Vectors
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A man points his rowboat north, straight across a river of width 114.3 m.  The river flows due east.  The man starts across, rowing steadily at 0.90 m/s @ north and reaches the other side of the river at a point 207 m downstream from his starting point.  What is the speed of the river? 

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