Block A is positioned on a 30° slope, and is connected by a cord to add of the top end of Rod. BC, as shown. The coeffienct of static friction at all three sites (A, B, and C) is µg = 0,20. Assuming that the pulley is frictionless, find the smallest value of WA that is consistent with equilibrium.
Block A is positioned on a 30° slope, and is connected by a cord to add of the top end of Rod. BC, as shown. The coeffienct of static friction at all three sites (A, B, and C) is µg = 0,20. Assuming that the pulley is frictionless, find the smallest value of WA that is consistent with equilibrium.
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Transcribed Image Text:**Problem Description:**
Block A is positioned on a 30° slope and is connected by a card to the top end of Rod BC, as shown in the diagram. The coefficient of static friction at all three sites (A, B, and C) is μs = 0.20. Assuming that the pulley is frictionless, find the smallest value of WA that is consistent with equilibrium.
**Diagram Details:**
- **Block A:** Positioned on a 30° incline.
- **Weight:** WA = TBD
- **Rod BC:**
- Connected to Block A via a cord.
- **Weight:** W = 46 N
- **Length:** L (will cancel out in calculations)
- The diagram shows:
- A 30° inclined plane where Block A rests.
- A rod (BC) creating a triangle, with BC having a 30° angle at point B.
- Point C is on a horizontal base.
- **Friction:**
- Coefficient of static friction (μs) at points A, B, and C is 0.20.
**Objective:**
Calculate the smallest value of WA (weight of Block A) that maintains equilibrium in the system.
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