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International Edition---engineerin...

4th Edition
Andrew Pytel And Jaan Kiusalaas
Publisher: CENGAGE L
ISBN: 9781305501607
Chapter 3, Problem 3.42P
Textbook Problem
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Determine the resultant of the four forces.

Chapter 3, Problem 3.42P, Determine the resultant of the four forces.

To determine

The resultant of the four forces.

Explanation of Solution

Given information:

Four forces acting on a plane.

Calculations:

As, we can see, there is symmetry about y-axis.

     My=0

The resultant of the forces is:

  R=FR=(60)j+(30+30+20)korR=(60j+80k)lb

Taking moment about point O:

  MO=20(4)i=80i

Here, we can notice that R and MO are perpendicular to each other

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Chapter 3 Solutions

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