Physics (10th Edition)

Published by Wiley
ISBN 10: 1118486897
ISBN 13: 978-1-11848-689-4

Chapter 3 - Kinematics in Two Dimensions - Check Your Understanding - Page 70: 17


Swimmer A

Work Step by Step

Swimmer A has just one component of velocity in the direction perpendicular to the flow with respect to the water. So, the whole of his velocity goes into crossing the river and nowhere else. But the other swimmer does not have the whole component into crossing the river but also a component in other directions. So, their speed to cross the river is less than the speed of Swimmer A to do that.
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