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CIV100F
Solutions
Section B/E
Fall 2011
Assignment 1
Due on Monday, September 19
th
2011
Draw a FBD if necessary; Pay attention to significant figures; A ruler is always required.
1 For the 160 kN force shown, determine its
components with respect to the following axis:
(a) x – y
(b) x’ – y’
(c) e – f
For (a) and (b), determine the solution
algebraically (i.e. using i, j components).
For (c), use graphic approach.
Solution
:
(a)
xy
kN
R
R
X
1
.
131
35
cos
=
°
=
kN
R
R
Y
8
.
91
35
sin
=
°
=
i
kN
R
X
)
1
.
131
(
=
j
kN
R
Y
)
8
.
91
(
=
(b)
x’y’
kN
R
R
X
80
)
35
25
cos(
'
=
°
+
°
=
kN
R
R
Y
6
.
138
)
35
25
sin(
'
=
°
+
°
=
i
kN
R
X
)
80
(
'
=
j
kN
R
Y
)
6
.
138
(
'
=
(c)
ef
kN
R
R
R
e
e
2
.
101
37
sin
108
sin
=
⇒
°
=
°
kN
R
R
R
f
f
5
.
96
35
sin
108
sin
=
⇒
°
=
°
y
R
y
x
x
R
R
R
x
'
R
y
R
e
f
R
e
160 kN
160 kN
35
º
x
y
160 kN
35
º
x
y
y’
x’
25
º
y
x (
e
)
35
º
18
º
f
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View Full DocumentCIV100F
Solutions
Section B/E
Fall 2011
Assignment 1
Due on Monday, September 19
th
2011
Draw a FBD if necessary; Pay attention to significant figures; A ruler is always required.
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