Determine the force in the member AB, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. FAB = 94.0 μA KN Submit Previous Answers Request Answer Part B ? X Incorrect; Try Again; 5 attempts remaining Determine the force in the member AE, and state if the member is in tension or compression. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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I cannot seem to get this problem I tried the only way I know how but I still am wrong. Can you show me what the right way to do this is?

**Problem Context**

**Set Parameters:**
- \( P_1 = 6.7 \, \text{kN} \)
- \( P_2 = 8.4 \, \text{kN} \)

**Diagram Description:**
The figure illustrates a truss supported at points \( A \) and \( D \) on brick columns. The truss has members forming a symmetric triangular shape with apex \( E \) at the top. The base is horizontal, spanning \( 12 \, \text{m} \) in total with \( 4 \, \text{m} \) sections between points \( A \), \( B \), \( C \), and \( D \). Two vertical loads are applied: \( P_1 = 6.7 \, \text{kN} \) at point \( B \), and \( P_2 = 8.4 \, \text{kN} \) at point \( C \). The height from the base to point \( E \) is \( 6 \, \text{m} \).

**Part A: Analysis**

**Objective:**
Determine the force in member \( AB \), specifying whether it is in tension or compression.

**Instructions:**
- Provide the answer using three significant figures.
- Include units (kN).
- Use negative values to indicate compression and positive values for tension.

**Student's Attempt:**
- Entered value: \( F_{AB} = 94.0 \, \text{kN} \)
- Feedback: **Incorrect**. There are 5 attempts remaining. 

**Part B: Analysis**

**Objective:**
Determine the force in member \( AE \), specifying whether it is in tension or compression.

**Instructions:**
- Provide the answer using three significant figures.
- Include units (kN).
- Use negative values to indicate compression and positive values for tension.

**Approach Reminder:**
- Use equilibrium equations and knowledge of statics to find forces in truss members.
- Assess the external loads and symmetry in the system where applicable.

This setup guides learners in understanding force analysis within truss systems and practicing the application of static equilibrium concepts.
Transcribed Image Text:**Problem Context** **Set Parameters:** - \( P_1 = 6.7 \, \text{kN} \) - \( P_2 = 8.4 \, \text{kN} \) **Diagram Description:** The figure illustrates a truss supported at points \( A \) and \( D \) on brick columns. The truss has members forming a symmetric triangular shape with apex \( E \) at the top. The base is horizontal, spanning \( 12 \, \text{m} \) in total with \( 4 \, \text{m} \) sections between points \( A \), \( B \), \( C \), and \( D \). Two vertical loads are applied: \( P_1 = 6.7 \, \text{kN} \) at point \( B \), and \( P_2 = 8.4 \, \text{kN} \) at point \( C \). The height from the base to point \( E \) is \( 6 \, \text{m} \). **Part A: Analysis** **Objective:** Determine the force in member \( AB \), specifying whether it is in tension or compression. **Instructions:** - Provide the answer using three significant figures. - Include units (kN). - Use negative values to indicate compression and positive values for tension. **Student's Attempt:** - Entered value: \( F_{AB} = 94.0 \, \text{kN} \) - Feedback: **Incorrect**. There are 5 attempts remaining. **Part B: Analysis** **Objective:** Determine the force in member \( AE \), specifying whether it is in tension or compression. **Instructions:** - Provide the answer using three significant figures. - Include units (kN). - Use negative values to indicate compression and positive values for tension. **Approach Reminder:** - Use equilibrium equations and knowledge of statics to find forces in truss members. - Assess the external loads and symmetry in the system where applicable. This setup guides learners in understanding force analysis within truss systems and practicing the application of static equilibrium concepts.
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