Conceptual Physics (12th Edition)

Published by Addison-Wesley
ISBN 10: 0321909100
ISBN 13: 978-0-32190-910-7

Chapter 3 - Think and Rank: 46

Answer

a. B, A, C b. C, B, A

Work Step by Step

The parallelogram rule is discussed on pages 28-29, and relative velocity is discussed on page 51. Each boat's velocity relative to the riverbank equals the vector sum of its velocity relative to the water, and the water's velocity relative to the riverbank. Boat B has the largest "eastward" component of resultant velocity (it is a hair longer than that of boat A) and will reach the opposite riverbank first. Longer resultant vectors correspond to faster speeds relative to the riverbank. Boat C gives the fastest ride, though it ends up traveling a long distance and will travel a significant distance downstream.
Small 1451588683
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.