The mass of cylinder C is given. Find the mass of cylinder A to maintain equilibrium. D A E 30° C B 40 kg

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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**CEE 241: Statics**

*University of Nevada, Las Vegas*

*Image copyright © Pearson Education, Inc. Shared with current students using accompanying text by the instructor solely for the purpose of teaching the course and assessing student learning. You should not distribute this document to anyone.*

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**Problem Statement:**
The mass of cylinder C is given. Find the mass of cylinder A to maintain equilibrium.

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**Diagram Explanation:**

The diagram shows a mechanical setup with a lever and pulleys. Key components are labeled:

- **Point D**: A fixed support connected by a horizontal segment to point E.
- **Point E**: A joint where segments meet; a pulley system connects weights A and C.
- **Cylinder A**: Suspended vertically below point E.
- **Cylinder C**: Suspended vertically with a mass of 40 kg.
- **Angle**: The angle between the line from point B to point E and the horizontal line DE is 30°.

The system needs balancing to maintain equilibrium, meaning the moments about the supporting structure should balance.

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**Solution:**

Determine the mass \( m_A \) of cylinder A. The answer given is:

\[ m_A = 20 \, \text{kg} \]

This solution ensures that the moments created by the masses around the pivot point E are balanced, considering the given angle and mass of cylinder C.
Transcribed Image Text:**CEE 241: Statics** *University of Nevada, Las Vegas* *Image copyright © Pearson Education, Inc. Shared with current students using accompanying text by the instructor solely for the purpose of teaching the course and assessing student learning. You should not distribute this document to anyone.* --- **Problem Statement:** The mass of cylinder C is given. Find the mass of cylinder A to maintain equilibrium. --- **Diagram Explanation:** The diagram shows a mechanical setup with a lever and pulleys. Key components are labeled: - **Point D**: A fixed support connected by a horizontal segment to point E. - **Point E**: A joint where segments meet; a pulley system connects weights A and C. - **Cylinder A**: Suspended vertically below point E. - **Cylinder C**: Suspended vertically with a mass of 40 kg. - **Angle**: The angle between the line from point B to point E and the horizontal line DE is 30°. The system needs balancing to maintain equilibrium, meaning the moments about the supporting structure should balance. --- **Solution:** Determine the mass \( m_A \) of cylinder A. The answer given is: \[ m_A = 20 \, \text{kg} \] This solution ensures that the moments created by the masses around the pivot point E are balanced, considering the given angle and mass of cylinder C.
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