Answer
$δ=60.0$
$F_{x}=40.0lb$
$F_y=56.6lb$
$F_z=40.0lb$
Work Step by Step
$Using $
$Cosx^{2}α+Cos^2ß+Cos^2δ=1$
$Cos^260+Cos^245+Cos^2δ=1$
$δ=60.0$
$F_x=FCosα=80Cos60=40.0lb$
$F_y=FCosß=80Cos45=56.6lb$
$F_z=FCosδ=80Cos60=40.0lb$
Engineering Mechanics: Statics & Dynamics (14th Edition)
by Hibbeler, Russell C.
Published by
Pearson
ISBN 10:
0133915425
ISBN 13:
978-0-13391-542-6
Chapter 2 - Force Vectors - Section 2.6 Addition of Cartesian Vectors - Problems - Page 52: 60
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