What is the magnitude of the resultant force caused by the three forces below? Assume that a, = 50°, B. = 35°, and the magnitude of F. = 300 lb. Note that F. lies in the x-y plane. Fy = 400 lb 30° F = 200 lb a
What is the magnitude of the resultant force caused by the three forces below? Assume that a, = 50°, B. = 35°, and the magnitude of F. = 300 lb. Note that F. lies in the x-y plane. Fy = 400 lb 30° F = 200 lb a
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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Transcribed Image Text:**Understanding the Magnitude of Resultant Force from Three Given Forces**
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**Problem Statement:**
What is the magnitude of the resultant force caused by the three forces below? Assume that \( \alpha = 50^\circ \), \( \beta = 35^\circ \), and the magnitude of \( F_1 = 300 \) lb. Note that \( F_3 \) lies in the \( x-y \) plane.
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**Diagram Explanation:**
In the diagram, there are three forces applied to a system. These forces are labeled as \( F_1 \), \( F_2 \), and \( F_3 \):
- \( F_1 \) is a force applied at an angle \( \alpha \) relative to the x-axis.
- \( F_2 \) is an applied horizontal force along the negative x-direction with a magnitude of 200 lb.
- \( F_3 \) is a force applied at a 30° angle from the y-axis, with a magnitude of 400 lb.
There are several angles and directions indicated:
- The angle \( \alpha_1 \), which is given as 50° relative to the x-axis.
- The angle \( \beta_1 \), which is given as 35° relative to the horizontal plane.
- \( F_3 \) makes a 30° angle with the y-axis and lies in the x-y plane.
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**Steps to Determine the Resultant Force:**
To find the resultant force (R) from the combination of these three forces, you can vectorially sum up the components of each force.
1. **Break down each force into its components:**
- \( F_1 \):
- \( F_{1x} = 300 \times \cos(50^\circ) \)
- \( F_{1y} = 300 \times \sin(50^\circ) \)
- \( F_{1z} = 300 \times \sin(35^\circ) \) (depending on the context, if this angle is the inclination in the z direction)
- \( F_2 \):
- This force acts along the -x direction, so:
- \( F_{2x} = -200 \)
- \( F_{2y} = 0 \)
- \( F_{2z} = 0 \)
- \( F_3
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