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International Edition---engineerin...

4th Edition
Andrew Pytel And Jaan Kiusalaas
Publisher: CENGAGE L
ISBN: 9781305501607
Chapter 3, Problem 3.12P
Textbook Problem
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When the three forces are replaced by an equivalent force-couple system with the force at point O, the couple vector C R is directed parallel to the x-axis. Determine F and the resultant force-couple system.

Chapter 3, Problem 3.12P, When the three forces are replaced by an equivalent force-couple system with the force at point O,

To determine

To find:

Force F equivalent force couple system at O

Explanation of Solution

Given Information:

Load 30 kN

Diagram

  

From diagram, we get coordinates as below

  A(0,0,4)B(3,0,0)C(0,3,0)

  FAB=FλAB=F3i4k 3 2 + 4 2 =F3i4k5FAC=FλAC=F3j4k 3 2 + 4 2 =F3j4k5F1=30ibut,R=FR=FAB+FAC+F1R=F3i

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Chapter 3 Solutions

International Edition---engineering Mechanics: Statics, 4th Edition
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