a. Define the position vector AD. b. Define the Cartesian Force vector for the force F of 90.0 lbs. c. Calculate the direction cosines (a,B,and y) of the force F.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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In the 3D spatial problem below, force F is represented by dimension locations and has a magnitude of 90.0 lbs on the end of the pipe segment as shown.

a. Define the position vector AD.
b. Define the Cartesian Force vector for the force F of 90.0 lbs.
c. Calculate the direction cosines (α, β, and γ) of the force F.
d. Determine the moment produced by the force F about the origin, A. (use the position vector from A to D.)
e. Determine the moment produced by force F about wire AC of the pipe assembly. Express the result as a Cartesian vector and as a magnitude.
f. What is the angle between the force vector and the wire AC?

**Diagram Explanation:**

The diagram illustrates a pipe segment in a 3D coordinate system defined by the axes X, Y, and Z. The following points and measurements are noted:

- **Point A** is aligned on the Z-axis, 4 inches above point B on the Y-axis. 
- **Point B** is 3 inches along the Y-axis from point C.
- **Point D** is located at the bottom, 5 inches downward from point C, extending 4 inches along the X-axis, and 7 inches further along the X-axis from the origin (for a total of 11 inches from the origin considering the segments).
- **Force F** of 90 lbs acts at an angle from point D, represented by a dashed line pointing towards point E, 4 inches along X and 4 inches along Y from D.

The task is to use these geometric and force specifications to determine vectors, Cartesian components, direction cosines, moments, and angles concerning the assembly's specific segments and points.
Transcribed Image Text:In the 3D spatial problem below, force F is represented by dimension locations and has a magnitude of 90.0 lbs on the end of the pipe segment as shown. a. Define the position vector AD. b. Define the Cartesian Force vector for the force F of 90.0 lbs. c. Calculate the direction cosines (α, β, and γ) of the force F. d. Determine the moment produced by the force F about the origin, A. (use the position vector from A to D.) e. Determine the moment produced by force F about wire AC of the pipe assembly. Express the result as a Cartesian vector and as a magnitude. f. What is the angle between the force vector and the wire AC? **Diagram Explanation:** The diagram illustrates a pipe segment in a 3D coordinate system defined by the axes X, Y, and Z. The following points and measurements are noted: - **Point A** is aligned on the Z-axis, 4 inches above point B on the Y-axis. - **Point B** is 3 inches along the Y-axis from point C. - **Point D** is located at the bottom, 5 inches downward from point C, extending 4 inches along the X-axis, and 7 inches further along the X-axis from the origin (for a total of 11 inches from the origin considering the segments). - **Force F** of 90 lbs acts at an angle from point D, represented by a dashed line pointing towards point E, 4 inches along X and 4 inches along Y from D. The task is to use these geometric and force specifications to determine vectors, Cartesian components, direction cosines, moments, and angles concerning the assembly's specific segments and points.
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