A boat crossing a river moves with a speed of 3 m/s relative to the water. The water in the river has a uniform speed of 4 m/s due east relative to the Earth. The river is 120 m wide. If the boat heads due north (a) how long does the crossing take? (b) Calculate magnitude and direction of the velocity of the boat with respect to the Earth.

A boat crossing a river moves with a speed of 3 m/s relative to the water. The water in the river has a uniform speed of 4 m/s due east relative to the Earth. The river is 120 m wide. If the boat heads due north (a) how long does the crossing take? (b) Calculate magnitude and direction of the velocity of the boat with respect to the Earth.

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter3: Motion In Two Dimensions

Section: Chapter Questions

Problem 9P

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