Engineering Mechanics: Statics & Dynamics (14th Edition)

Published by Pearson
ISBN 10: 0133915425
ISBN 13: 978-0-13391-542-6

Chapter 2 - Force Vectors - Section 2.3 - Vector Addition of Forces - Problems - Page 31: 23


$\theta=75.5^{\circ }$

Work Step by Step

$c=\sqrt{a^2+b^2-2*a*b*\cos(C)}$ $800=\sqrt{400^2+600^2-2*400*600*\cos(180^{\circ }-\theta}$ $\theta=75.5^{\circ }$
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