Engineering Mechanics: Statics & Dynamics (14th Edition)

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

Chapter 4 - Force System Resultants - Section 4.4 - Principle of Moments - Fundamental Problems: 3

Answer

$M_O=3070lb*ft\circlearrowleft$

Work Step by Step

We will sum the torques about point O $M_O=(+ \circlearrowleft) \sum \tau_O$ $M_O=F*(4ft+\cos(45^{\circ})*3ft -1ft)$ $M_O=600lb*(4ft+\cos(45^{\circ})*3ft -1ft)$ $M_O=3070lb*ft$ $M_O=3070lb*ft\circlearrowleft$
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