Understanding Motor Controls
3rd Edition
ISBN: 9781305498129
Author: Stephen L. Herman
Publisher: Cengage Learning
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Textbook Question
Chapter 41, Problem 4RQ
To answer the following questions refer to the circuit in Figure 41–6.
What is the purpose of timer TR in this circuit?
Expert Solution & Answer
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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
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BY NC SA
B
b
C
h/
L
不
g
F
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d
y
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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 41 Solutions
Understanding Motor Controls
Ch. 41 - To answer the following questions refer to the...Ch. 41 - To answer the following questions refer to the...Ch. 41 - Prob. 3RQCh. 41 - To answer the following questions refer to the...Ch. 41 - To answer the following questions refer to the...Ch. 41 - Prob. 6RQCh. 41 - To answer the following questions refer to the...Ch. 41 - To answer the following questions refer to the...Ch. 41 - Prob. 9RQCh. 41 - Prob. 10RQ
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