Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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**Mechanics Problems: Applying Vector Concepts**

Use the figure provided for both problems.

**Problem 4: Determining the Angle with the x-axis**
The magnitude of α₁, the angle F1 makes with the x-axis, is nearest to:
- a) 35°
- b) 50°
- c) 71°
- d) 66°
- e) None of the above

**Problem 5: Calculating the x-component of F2 Force**
The x-component of the F2 force can be expressed mathematically as:
- a) 750 cos 50° sin 40°
- b) 550 sin 45° cos 45°
- c) −550 cos 45° sin 45°
- d) 310 N
- e) 2.75 kN

**Explanation of the Diagram:**

The diagram shows a structure with two forces, F1 and F2, acting on it. Specific angles are given:
- F1 is a 750 N force shown with angles 40° and 45° relative to some axes.
- F2 is a 550 N force with angles 45° and 120°.
- The forces and angles are illustrated along with Cartesian coordinate axes (x, y, z).

These angles and forces are crucial for solving the problems related to vector components and magnitudes.
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Transcribed Image Text:**Mechanics Problems: Applying Vector Concepts** Use the figure provided for both problems. **Problem 4: Determining the Angle with the x-axis** The magnitude of α₁, the angle F1 makes with the x-axis, is nearest to: - a) 35° - b) 50° - c) 71° - d) 66° - e) None of the above **Problem 5: Calculating the x-component of F2 Force** The x-component of the F2 force can be expressed mathematically as: - a) 750 cos 50° sin 40° - b) 550 sin 45° cos 45° - c) −550 cos 45° sin 45° - d) 310 N - e) 2.75 kN **Explanation of the Diagram:** The diagram shows a structure with two forces, F1 and F2, acting on it. Specific angles are given: - F1 is a 750 N force shown with angles 40° and 45° relative to some axes. - F2 is a 550 N force with angles 45° and 120°. - The forces and angles are illustrated along with Cartesian coordinate axes (x, y, z). These angles and forces are crucial for solving the problems related to vector components and magnitudes.
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