Determine the force in members DC, HI, and JI of the truss. State if the members are in tension or compression. Take that P 1270 lb and P₂ = 1740 lb. Suggestion: Use the sections shown. (Figure 1) Figure G 6 ft 6 ft 12 ft -9 ft--6 ft--6 ft- -9 ft P₁ C Ⓡ B -6 ft--6 ft- 1 of 1 P₂ Determine the force in the member DC of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Assume positive scalars for members in tension and negative scalars for members in compression. FDC = Submit Part B μÀ 5330 FHI = 4 Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining lb μÀ Determine the force in the member HI of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Assume positive scalars for members in tension and negative scalars for members in compression. Value ? Units ?

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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I tried to solve the first problem by cutting a section at s and then taking the sum of moments with respect to point H (HJ, HI, DJ are now not relevant) which looks like it yields compression which seems right but I keep on getting the wrong answer

Determine the force in members DC, HI, and JI of the
truss. State if the members are in tension or compression.
Take that P₁ = 1270 lb and P₂ = 1740 lb. Suggestion:
Use the sections shown. (Figure 1)
Figure
6 ft
6 ft
12 ft
P₁
-9 ft
-6 ft--6 ft·
-6 ft--6 ft-
D
C
B
t
1 of 1
E
P₂
Determine the force in the member DC of the truss, and state if the member is in tension or compression.
Express your answer to three significant figures and include the appropriate units. Assume positive
scalars for members in tension and negative scalars for members in compression.
FDC =
Submit
Part B
μA
5330
FHI =
Previous Answers Request Answer
X Incorrect; Try Again; 6 attempts remaining
O
Di
lb
Determine the force in the member HI of the truss, and state if the member is in tension or compression.
Express your answer to three significant figures and include the appropriate units. Assume positive
scalars for members in tension and negative scalars for members in compression.
μA
Value
?
Units
?
Transcribed Image Text:Determine the force in members DC, HI, and JI of the truss. State if the members are in tension or compression. Take that P₁ = 1270 lb and P₂ = 1740 lb. Suggestion: Use the sections shown. (Figure 1) Figure 6 ft 6 ft 12 ft P₁ -9 ft -6 ft--6 ft· -6 ft--6 ft- D C B t 1 of 1 E P₂ Determine the force in the member DC of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Assume positive scalars for members in tension and negative scalars for members in compression. FDC = Submit Part B μA 5330 FHI = Previous Answers Request Answer X Incorrect; Try Again; 6 attempts remaining O Di lb Determine the force in the member HI of the truss, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Assume positive scalars for members in tension and negative scalars for members in compression. μA Value ? Units ?
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