Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 11 - Vectors and Vector-Valued Functions - 11.3 Dot Products - 11.3 Exercises: 37

Answer

$W= 750\sqrt 3$ ft-lb

Work Step by Step

$W= |\textbf{F}||\textbf{d}|cos(\theta) = (30)(50)(cos(30^\circ)) = 1500 \times \frac{\sqrt 3}{2} =750\sqrt 3$ ft-lb
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