Computation. A river is 57 m wide and you want to swim straight across it. You find that you can do this if you swim at an angle of 0 = 28° from the upstream direction at a constant rate of 1.2 m/s (relative to th water). What is the river's flow speed relative to the ground, Vrg? [Note: Notice carefully that the angle 0 is measured from the river bank so that directly upstream is 0 = 0° and directly across the river is 0 = 90°.]
Computation. A river is 57 m wide and you want to swim straight across it. You find that you can do this if you swim at an angle of 0 = 28° from the upstream direction at a constant rate of 1.2 m/s (relative to th water). What is the river's flow speed relative to the ground, Vrg? [Note: Notice carefully that the angle 0 is measured from the river bank so that directly upstream is 0 = 0° and directly across the river is 0 = 90°.]
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter2: Vectors
Section: Chapter Questions
Problem 83AP: A diver explores a shallow reef off the coast of Belize. She initially swims 90.0 m north, makes a...
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