Applied Statics and Strength of Materials (6th Edition)
6th Edition
ISBN: 9780133840544
Author: George F. Limbrunner, Craig D'Allaird, Leonard Spiegel
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 3.23P
In Problem 3.22 
, calculate the moment about point O, using Varignon’s theorem, resolving the force into its X and Y components at point B and at point C.
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use Varignon's Theorem
The 2.8-KN force F is applied at point A.
(0) Compute the moment of F about point O, expressing it both as a scalar (positive if CCW, negative if CW) and as a vector quantity.
(b) Determine the coordinates of the points on the x- and y-axes about which the moment of F is zero.
Assume X4 = 1.5 m, YA = 2.1 m, a = 8, b = 14.
y, m
A(x, y)
F
-x, m
Answers:
Scalar:
Vector:
On the x
axis:
On the y
axis:
Mo= i
Mo=( 1
X =
y=
i
3
KN-m
m
i+i
j+
k) kN-m
Chapter 3 Solutions
Applied Statics and Strength of Materials (6th Edition)
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