EBK MINDTAP FOR HERMAN'S UNDERSTANDING
4th Edition
ISBN: 9781337798761
Author: Herman
Publisher: VST
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Chapter 4, Problem 3RQ
To determine
Identify the two major types of thermal overload relays.
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F3
N<
Ꮎ
2
F2
-Y
F1
There are 3 forces acting on the eye bolt.
Force F1 acts on the XY plane has a magnitude of 536 lbf,
and the angle of 0 = 38°.
Force F2 acts on the YZ plane has a magnitude of 651 lbf,
and the angle = 41°.
Force F3 has a magnitude of 256 lb, and coordinate.
=
f
direction angles of a 71°, B = 115°, and y = 33°.
Determine the resultant force on the eye bolt.
FR = (
+
k) lbf
FR magnitude:
FR coordinate direction angle a:
deg
FR coordinate direction angle ẞ`:
deg
FR coordinate direction angle y:
deg
lbf
Ball joints connect the ends of each of the struts as shown.
The resulting structure supports a force of F = 1925 N which
lies in the xz plane.
a.) Determine the angle (in degrees) between strut AD and
strut AC.
b.) Determine the dimension g such that the force Fis
→>
perpendicular to гAC.
2013 Michael Swanbom
CC
BY NC SA
B
b
C
h/
L
不
g
F
୮
d
y
LLC
Values for dimensions on the figure are given in the table
below. Note the figure may not be to scale. Be sure to align
your cartesian unit vectors with the coordinate axes shown in
the figure.
Variable Value
a
4.8 cm
b
13.4 cm
C
11.6 cm
d
10.4 cm
h
4.4 cm
k
14.8 cm
a. The angle between strut AD and strut AC is
b. The dimension g is
deg.
cm.
13
F1
35
N = 37°.
=
Determine the resultant force on the eye bolt.
FR = (
+
FR magnitude:
FR coordinate direction angle a:
deg
FR coordinate direction angle ẞ`:
Ꭱ
deg
FR coordinate direction angle y:
deg
N
k) N
Chapter 4 Solutions
EBK MINDTAP FOR HERMAN'S UNDERSTANDING
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