Functions Modeling Change: A Preparation for Calculus, 5th Edition

by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.

Published by Wiley

ISBN 10: 1118583191

ISBN 13: 978-1-11858-319-7

Chapter 7 - Trigonometry and Periodic Functions - 7.1 Introduction to Periodic Functions - Exercises and Problems for Section 7.1 - Exercises and Problems - Page 271: 21

Answer

$-26 ft/min$

Work Step by Step

We are given that the height on the way down is equal to height on the way up. Now, the average vertical speed is equal to $\dfrac{-160 \times 30}{5}=-26 ft/min$

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