4-63. Determine the magnitude of the moment of the force F= {50i – 20j – 80k} N about the base line CA of the tripod. D 4 m 2 m 1.5 m 2.5 m 2 m 0.5 m B Probs. 4–61/62/63

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
The problem, labeled as 4–63, requires you to calculate the magnitude of the moment of the force \( \mathbf{F} = \{50\mathbf{i} - 20\mathbf{j} - 80\mathbf{k}\} \, \text{N} \) around the base line \( CA \) of the tripod structure.

### Diagram Explanation

The diagram depicts a 3D structure, resembling a tripod, with three main points—A, B, and C—forming the base on the xy-plane and a point D elevated along the z-axis. 

- **Points and Distances:**
  - **Point A:** Positioned 2.5 m along the y-axis.
  - **Point B:** Positioned 0.5 m along the x-axis and 1 m along the y-axis.
  - **Point C:** Positioned 1.5 m along the x-axis.
  - **Point D:** Elevated 4 m above the xy-plane (z-axis).
  
- **Force \( \mathbf{F} \):** This force is applied at point D, directed downward.

### Structural Elements

- The tripod has triangular elements formed by lines connecting the base corners (A, B, C) and the top point D. These lines represent the tripod legs.
  
### Contextual Framework

The task involves determining the rotational effect of the force \( \mathbf{F} \) about a line segment (CA) on the structure, using principles of vector mechanics, specifically involving the calculation of moments. 

### Problem References

- The problem is part of a sequence: Probs. 4–61/62/63, suggesting it is related to similar problems involving vector dynamics and force analysis.

For a thorough understanding and solution, one would typically apply concepts of cross-product to compute the moment and follow the specific geometry of the tripod structure and the force's line of action.
Transcribed Image Text:The problem, labeled as 4–63, requires you to calculate the magnitude of the moment of the force \( \mathbf{F} = \{50\mathbf{i} - 20\mathbf{j} - 80\mathbf{k}\} \, \text{N} \) around the base line \( CA \) of the tripod structure. ### Diagram Explanation The diagram depicts a 3D structure, resembling a tripod, with three main points—A, B, and C—forming the base on the xy-plane and a point D elevated along the z-axis. - **Points and Distances:** - **Point A:** Positioned 2.5 m along the y-axis. - **Point B:** Positioned 0.5 m along the x-axis and 1 m along the y-axis. - **Point C:** Positioned 1.5 m along the x-axis. - **Point D:** Elevated 4 m above the xy-plane (z-axis). - **Force \( \mathbf{F} \):** This force is applied at point D, directed downward. ### Structural Elements - The tripod has triangular elements formed by lines connecting the base corners (A, B, C) and the top point D. These lines represent the tripod legs. ### Contextual Framework The task involves determining the rotational effect of the force \( \mathbf{F} \) about a line segment (CA) on the structure, using principles of vector mechanics, specifically involving the calculation of moments. ### Problem References - The problem is part of a sequence: Probs. 4–61/62/63, suggesting it is related to similar problems involving vector dynamics and force analysis. For a thorough understanding and solution, one would typically apply concepts of cross-product to compute the moment and follow the specific geometry of the tripod structure and the force's line of action.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Structural Analysis
Structural Analysis
Civil Engineering
ISBN:
9781337630931
Author:
KASSIMALI, Aslam.
Publisher:
Cengage,
Structural Analysis (10th Edition)
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Sustainable Energy
Sustainable Energy
Civil Engineering
ISBN:
9781337551663
Author:
DUNLAP, Richard A.
Publisher:
Cengage,
Traffic and Highway Engineering
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning