PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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Determine the normal force, shear force, and moment at points F and E.
50 lb/ft
- 3 ft
E
2 ft
B
6 ft
C
4 ft
F D
2 ft
Replace the two forces acting on the pole by a wrench. Write the force R and moment M associated with the wrench as vectors and
specify the coordinates of the point P in the y-z plane through which the line of action of the wrench passes.
Assume F₁ = 46 N, F₂ = 107 N, a = 1.6 m, b = 6.3 m.
F₁
Answers:
R=( i
M = (i
I
Force and moment associated with wrench
Coordinates of point P.
(y,z) = (i
F₂
T
b
i+ i
¡+ i
i
j+ i
j+
) m
i
k) N
k) N-m
The pipe assembly is subjected to three forces of F1 = {3.00, 4.00, -2.00} kip, F2 = {0, 0,-4.00} kip, and F3 = {-3.00, 0, 0} kip. Determine the sum of the moment of the forces
1) about x-axis (the unit vector of x is i) and
2) about line AC. Express the result as a Cartesian vector.
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