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5–6. Determine the force in each member of the truss and
state if the members are in tension or compression. Set
and .P2 = 1.5 kNP1 = 2 kN A
E D
30 30
B
C
3 m 3 m
P2P1
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•5–9. Remove the 500-lb force and then determine the
greatest force P that can be applied to the truss so that none
of the members are subjected to a force exceeding either
800 lb in tension or in compression.600 lb
3 ft
3 ft
3 ft
P
3 ft
500 lb
A
C B
DF E
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*5–16. Determine the force in each member of the truss,
and state if the members are in tension or compression. Set
.P = 4 kN
P
3 m
A C B
E
D
F
P
3 m 3 m3 m
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*5–20. Determine the force in each member of the truss in
terms of the load P , and indicate whether the members are
in tension or compression.
A
B
C
DF
E
P
d
d
d d/ 2 d/ 2 d
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•5–21. If the maximum force that any member can support
is 4 kN in tension and 3 kN in compression, determine the
maximum force P that can be applied at joint B. Take
.d = 1 m
A
B
C
DF
E
P
d
d
d d/ 2 d/ 2 d
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5–23. The internal drag truss for the wing of a light
airplane is subjected to the forces shown. Determine the
force in members BC , BH , and HC , and state if the
members are in tension or compression.
2 ft
A B C D
J I H G
E
F
2 ft 2 ft 2 ft 1.5 ft
80 lb 80 lb60 lb
40 lb
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5–26. Determine the force in members JK ,CJ , and CD of
the truss, and state if the members are in tension or
compression.
A
B C D F E
G
H
I J
L
K
6 kN8 kN5 kN4 kN
3 m
2 m 2 m 2 m 2 m 2 m 2 m
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5–39. Determine the force in membersCD and GF of the
truss and state if the members are in tension or
compression.Also indicate all zero-force members.
1.5 m
2 m2 m
1 m 1 m
0.8 m
2 kN
1.5 kN
A
H
B D
G
C
F E