ENG.35SummerSessionII
HW#3
1. Determine the force in each member of the double-pitch roof truss shown. State whether each member
is in tension or compression.
4m
4m
4m
3m
3m
2 kN
2 kN
F
2 kN
1.5 kN
6m
D
1 kN
G
0.75 kN
B
H
A
C
E
6m
6m
6m
2. For the given l
ENG.35 Summer Session II
HW #1
1. A telephone cable is clamped at A to the pole AB. Knowing that the tension in the right-hand portion of
the cable is T2=1000 lb, determine (a) the required tension T1 in the left-hand portion if the resultant of
the force
PROBLEMS
6.1 through 6.8
Using the method of joints, determine the force
in each member of the truss shown. State whether each member
is in tension or compression.
3m
945 lb
A
1.25 m
A
B
A
9 ft
4m
84 kN
4m
C
B
1.92 kN
12 ft
3m
3.75 ft
C
Fig. P6.1
Fig. P6.
PROBLEMS
y
9.1 through 9.4 Determine by direct integration the moment of
inertia of the shaded area with respect to the y axis.
b
9.5 through 9.8
Determine by direct integration the moment of
inertia of the shaded area with respect to the x axis.
h
x
Fig.
PROBLEMS
5.1 through 5.9 Locate the centroid of the plane area shown.
y
30 mm
y
20 mm
30 mm
y
300 mm
12 in.
36 mm
21 in.
30 mm
15 in.
24 mm
x
240 mm
x
x
Fig. P5.1
Fig. P5.2
Fig. P5.3
y
6 in.
8 in.
y
6 in.
6 in.
y
8 in.
120 mm
3 in.
r = 4 in.
6 in.
6 in.
r
PROBLEMS
3.1 A foot valve for a pneumatic system is hinged at B. Knowing that
a 5 28, determine the moment of the 16-N force about point B
by resolving the force into horizontal and vertical components.
16 N
A
3.2 A foot valve for a pneumatic system is hi
PROBLEMS
2.1 Two forces P and Q are applied as shown at point A of a hook
support. Knowing that P 5 75 N and Q 5 125 N, determine
graphically the magnitude and direction of their resultant using
(a) the parallelogram law, (b) the triangle rule.
2.2 Two fo
ENG 35 Statics Spring 2017
Quiz 1 Open Course Notes Only
Two forces are applied to the point- -body at A, as shown 1n the gure. Please com-
pute the x- and y- components of the resultant, or combined, force that acts on the
point- b-ody. (10 points)
9
c
ENG 35 Statics Spring 2017
Quiz 10 - Open Course Notes Only (10 points)
Please draw the bending-moment diagram for the simply-supported beam loaded as
shown in the figure. l.e., plot M(x).
Be sure to indicate the peak value of M(X), and the value of X at
ENG 35 Statics Spring 2017
Quiz 7 Open Course Notes Only
For the L shaped gate placed at the end of a water channel, perform the following:
a) draw fluid pressure diagram that acts on the gate,
b) draw the free body diagram (FBD) of the gate (be detailed
ENG 35 Statics Spring 2017
Quiz 4 - Open Course Notes Only
When the 0.5 kg body is in the position shown, the tension in the cable AB is 20 N.
Determine the force P required to break contact at C for the following two cases:
(a) including the effect of th
ENG 35 Statics Spring 2017
Quiz 2 - Open Course Notes Only
A tension of magnitude T is applied to the end of the rope to hold the box (weight W) in
a stationary position. Please calculate the x- and y-components of the force exerted at
the center of the p
ENG 35 Statics Spring 2017
Quiz 9 Open Course Notes Only (10 points)
The frame ABCDEF carries given load Wand is supported by the pin A and the cable
DG as shown in the figure below. Please show the following:
a) The free body diagram of the entire frame
ENG 35 Statics Spring 2017
Quiz 8 - Open Course Notes Only
For the truss loaded as shown in the figure below and supported with the pin A and the
roller B, determine the following:
a) Is the truss statically determinate or indeterminate (show your work),
ENG 35 (Winter 2015) ~ Midterm Quiz 7 Show all work
1 Member OAB is pinned at 0 and supported by cables AC and AD. The CO-
ordinates of points A and B are indicated in the gure. The load applied at B
acts downward (in the -y direction). If the maximum all
ENG 35 Statics Spring 2017
Quiz 3 Open Course Notes Only
A body is subjected to the three forces of the same magnitude | F1 I = I F2| =| F3| = F,
acting at the locations and in the directions shown in the figure.
(a) Replace this force system with a stati
ENG 35 Statics Spring 2017
Quiz 6 Open Course Notes Only
A cantilever beam of length L is fixed at the support A. A steel bar of length a is welded
to the beam at the point B. Force Facts perpendicular to the bar as shown in the figure
below. Determine th
Statics
ENG 35
Spring 2017
Quiz 5 - Open Course Notes Only
Calculate the coordinates (x, y) of the centroid of the planar region shown in
the figure, relative to the given coordinate frame
, 30cm ,
1
1
L
D
1
80cm
/'
A
lt'z'J ti I
X =-
X :
J xda /_Jclc
!
I
UNIVERSITY OF CALIFORNIA, DAVIS
College of Engineering
ENG 35 Final Exam Winter 2017 March 21, 2017
This exam is open printed sources textbook and course notes. No computers or
other electronic devices except calculators. In all problems for which gravity
Geometric Interpretations of Solution Sets
Geometric Interpretations of Solution Sets
The graph of a linear equation in two variables
a1 x1 + a2 x2 = b
is a line in R2
A system of linear equations in two variables can have no
solutions, one solution, or i
ENG 35 Statics Winter 2017
Quiz 1 - Open Course Notes Only
A tension of magnitude T is applied to the end of the rope to hold the box (weight
W) in a stationary position. Please calculate the x- and y-components of the force
exerted at the center of the p
ENG 35 Statics Winter 2017
Quiz 3 Open Course Notes Only '
Please calculate the coordinates (96, 37) of the centroid of the planar region shown in
the gure, relative to the given coordinate frame.
L4a+4a.|
cfw_,\
=Axaa/ act; = yAa/A&a
[9+ w
A A
gxda= kAa-
ENG 35 Statics Winter 2017
Quiz 2 Open Course Notes Only
The semi-circular plate has radius a, and is subjected to three identical forces F act-
ing at the locations shown in the gure.
(a) Replace this force system with a statically equivalent system cons
Some Tips on Statics
This is a summary of some tips (other than those in Prof. Rashids summary) that I can
think of for statics.
1. Make sure you read thoroughly the summary for the final exam by Prof. Rashid at
least once. I consider it very useful!
2. C
At a recent National Constitution Center event, political philosopher Danielle Allen examined the
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In her conversation with Chris Phillips, Senior Education Fellow at t
In 2006, the highest court in New York affirmed that students in the state have a right to civic
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question: What is an education for? Lawyers representing the Campaign
3 Responses to Danielle Allen on equality, education and the Declaration of Independence
Sevesteen says:
October 20, 2012 at 10:35 pm
When I was in high school, a civics teacher was running for office. One of the classroom extracredit assignments was to v
people, and society generally, can compete in a global economy. This view is tightly connected to
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inequality in a technology-dependent economy. The result has be