
College Physics
11th Edition
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Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:**Pre-Lab Equilibrium Questions:**
1) **In Figure 1 in manual:**
- \( F_1 = 185.0 \, \text{gm-wt} \)
- \( F_2 = 205.0 \, \text{gm-wt} \)
- \( \theta_1 = 35.0 \, \text{degrees} \) and \( \theta_2 = 56.0 \, \text{degrees} \)
a) Determine the magnitude and direction of \( F_3 \).
2) **In figures 3 and 4, \( AM = 14.4 \, \text{cm} \):**
- \( F_2 = 165 \, \text{gm-wt} \) and \( \theta_2 = 56.0 \, \text{degrees} \)
Calculate torque of \( F_2 \) about the point \( A \) and sense of rotation.
3) **In figures 3 and 4, \( AN = 13.4 \, \text{cm} \):**
- \( F_3 = 75 \, \text{gm-wt} \) and \( \theta_3 = 79.0 \, \text{degrees} \)
Calculate torque of \( F_3 \) about the point \( A \) and sense of rotation.

Transcribed Image Text:## Transcription for Educational Website
### Theory:
The diagram labeled as Fig. 1 illustrates a physical setup involving forces and angles. This setup is used to demonstrate the conditions required for equilibrium in a system.
### Diagram Explanation:
1. **Diagram Elements:**
- There are three forces, denoted as \( F_1 \), \( F_2 \), and \( F_3 \).
- The forces converge at a point labeled \( M \).
- Angles \( \theta_1 \), \( \theta_2 \), and \( \theta_3 \) are formed between the forces and the lines connecting them.
- The system includes pulleys depicted as circles with ropes looping around them.
2. **Setup Configuration:**
- \( F_1 \) is directed towards the bottom right corner, creating angle \( \theta_1 \) with the horizontal.
- \( F_2 \) points upwards and to the right, forming angle \( \theta_2 \).
- \( F_3 \) is directed horizontally to the left, along \( \theta_3 \).
3. **Additional Details:**
- The diagram includes shading to differentiate sections, suggesting a surface or base.
- The illustration might be part of a lab experiment aimed at exploring mechanical equilibriums, where vector addition or balancing is required.
This setup highlights the principles of equilibrium, demonstrating how forces interact in a balanced system and the significance of angles and directions in vector analysis.
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