Hom
mework #5 - Structurral Analyssis
Du
ue Monda
ay, March 11, 2013
2000 lbs
1. Deteermine the fo
orce in each member of the
t
trusss shown in Figure
F
1 and state whetheer
the members
m
aree in tension or
o compressiion
(10 pts)
p
Figu
ure 1
2200 lbs
44
EGN 3311: Statics (Spring 2013)
Study Problems for Exam #1
1. A 15 lb flower basket is
supported by ropes as
shown in Figure 1. The
coordinates of the points
A B C and D are shown
below. Line DB has a
spring which, in the
loaded condition, has
been stretc
EGN 3311: Statics (Sprring 2013)
Homeworrk #6 Intternal Forrces and F
Friction
(Due
(
Frida
ay, April 55, 2013)
1. Defin
ne the follow
wing in your own words (1 pt each)
a. Normal
N
force
b. Weight
W
c. Bending
B
Mom
ment
d. Twisting
T
Mom
ment
e. Shear F
E
EGN 3311: Statics (S
Spring 20113)
Centrooids, Momen
nts of Inertiia and Virtu
ual Work
Due Moonday, Aprill 15, 2013
Figu
ure 1
1. Deteermine the pproduct of Innertia (Ixy) foor the
paraabolic shape shown in Fiigure 1 arounnd
the aaxes shown (10 pts).
F
Homework
H
k #5 - Strucctural Anaalysis (Soolutions)
Figure 1
1. Deteermine the fo
orce in each member of the
t
trusss shown in Figure
F
1 and state whetheer
the members
m
aree in tension or
o compressiion
(10 pts)
p
2000 lbs
2000 lbs
4000 lbs
SOLUTIION
S
EGN 3311: Statics (Sprring 2013)
Hom
mework #44 SOL
LUTIONS
S
1. In Fig
gure 1, it tak
kes a force
(F) off 250 lbs to remove
r
the
nail frrom point O,
determ
mine the smaallest
verticcal force (P) that must
be app
plied to the crow
c
bar
in Fig
gure 4. (1
E
EGN 33111: Statiics (Spriing 2013
3)
Homew
work #4
Equilibrium an
nd Conn
nections
Friday, M
March 1, 2013
Due F
1. In Fig
gure 1, it takes a force (F
F) of
250 lb
bs to removee the nail fro
om
point O, determin
ne the smalleest
verticcal force (P) that
EGN 3311: Statics (Spring 2013)
Homework #1 - Basic Concepts
Solutions
24
1. The mass of the earth is 5.9810 kg and its diameter is 12,742 km. Calculate the gravitational
acceleration constant for the earth? (5 points)
Solution
1. Develop controlling equa
EGN 3311: Statics (Sprring 2013)
Hom
mework #2
# - Vectoor Algebrra
SOL
LUTIONS
S
Figuree 1
= 60o
1. The man
m in Figu
ure 1 pulls on
n the rope wiith a
forcee of 150 lbs. Write the force
f
(F) in Cartesian
C
form
m and determ
mine the magn
nitude of the
EGN 33111: Staticss (Spring 22013)
Hom
mework #3 - Moments
Due Wed
dnesday, F
February 66, 2013
Figure 1
1. Deterrmine the Mo
oment generrated around
point P by the forrce applied at
a point A as
n in figure 1. Assume th
he points aree
shown
both part
p o
EGN 33111: Staticss (Spring 22013)
Hom
mework #3 - Moments
Solutioons
Figure 1
1. Deterrmine the Mo
oment generrated around
point P by the forrce applied at
a point A as
n in figure 1. Assume th
he points aree
shown
both part
p of a sing
gle solid bod
dy.
EGN 3311: Statics (Spring 2013)
Homework #2 - Vector Algebra
Due Friday, January 25th
Figure 1
= 60o
1. The man in Figure 1 pulls on the rope with a
force of 150 lbs. Write the force (F) in Cartesian
form and determine the magnitude of the
component forc