Question
Asked Jan 15, 2020
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Hi there. Could you please help me work through the attached question. Thank you very much in advance. 

Given: A boom arm is supported by a ball-and-socket joint at C and by cables AD and AE as shown in
the figure below. This arm is loaded by a 7.2 kN force at B (acting in the negative y-direction).
1.0 m
1.0 m
0.8 m
1.4 m
B.
1.6 m
7.2 kN
1.6 m
Required: Find the tension in each cable and the reaction at support C.
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Given: A boom arm is supported by a ball-and-socket joint at C and by cables AD and AE as shown in the figure below. This arm is loaded by a 7.2 kN force at B (acting in the negative y-direction). 1.0 m 1.0 m 0.8 m 1.4 m B. 1.6 m 7.2 kN 1.6 m Required: Find the tension in each cable and the reaction at support C.

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Expert Answer

Step 1

The free body diagram of the boom arm is shown below.v

Civil Engineering homework question answer, step 1, image 1
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Step 2

 

There are five unknowns and six equilibrium equations, so the given structure is determinant.

From the above figure,

There are five unknowns and six equilibrium equations, so the given structure is determinant.

From the above figure,

Civil Engineering homework question answer, step 2, image 1
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Step 3

The tension in cable AD and ...

Civil Engineering homework question answer, step 3, image 1
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