Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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**Problem Statement:**

Calculate the moment *about* point O of the 200-lb force that lies in the X-Y plane shown below. Solve the force into rectangular components at point M.

**Diagram Explanation:**

The diagram illustrates a force vector \( F \) with a magnitude of 200 lb, positioned in the X-Y plane. The force is applied at point M and points in a direction that forms a 30° angle with the positive X-axis. The diagram provides a coordinate system with the following details:

- **Coordinate Axes:** 
  - X-axis extends in positive and negative directions horizontally.
  - Y-axis extends in positive and negative directions vertically.
  
- **Points:**
  - **Point O:** The origin of the coordinate system.
  - **Point M:** The point where force \( F \) is applied. This point is 3 feet in the positive X direction and 2 feet in the positive Y direction from point O.

- **Components:**
  - \( F_x \): The horizontal component of the force.
  - \( F_y \): The vertical component of the force.

**Dimensional Details:**

- The distance from point O to point M along the X-axis is 3 feet.
- The distance from point O to point M along the Y-axis is 2 feet.

The task involves decomposing the force \( F = 200 \text{ lb} \) into its rectangular components \( F_x \) and \( F_y \), and then using these components to calculate the moment about point O.
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Transcribed Image Text:**Problem Statement:** Calculate the moment *about* point O of the 200-lb force that lies in the X-Y plane shown below. Solve the force into rectangular components at point M. **Diagram Explanation:** The diagram illustrates a force vector \( F \) with a magnitude of 200 lb, positioned in the X-Y plane. The force is applied at point M and points in a direction that forms a 30° angle with the positive X-axis. The diagram provides a coordinate system with the following details: - **Coordinate Axes:** - X-axis extends in positive and negative directions horizontally. - Y-axis extends in positive and negative directions vertically. - **Points:** - **Point O:** The origin of the coordinate system. - **Point M:** The point where force \( F \) is applied. This point is 3 feet in the positive X direction and 2 feet in the positive Y direction from point O. - **Components:** - \( F_x \): The horizontal component of the force. - \( F_y \): The vertical component of the force. **Dimensional Details:** - The distance from point O to point M along the X-axis is 3 feet. - The distance from point O to point M along the Y-axis is 2 feet. The task involves decomposing the force \( F = 200 \text{ lb} \) into its rectangular components \( F_x \) and \( F_y \), and then using these components to calculate the moment about point O.
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