Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 7 - Section 7.6 - Vectors: The Dot Product - 7.6 Problem Set: 54

Answer

(c) $1092$ ft-lb

Work Step by Step

Work$=\textbf {F}\cdot\textbf {d}$ Work$= 15(80)-9(12)$ Work$=1200-108$ Work$=1092$ ft-lb Therefore, the answer is option (c).
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