BRAINCAKEObjects On a Slope
For an object on a slope inclined at θ to the horizontal, it helps to resolve its weight W into two components: Wsinθ acting down the slope and Wcosθ acting perpendicular to the slope.
For a vehicle at rest on the slope, the support forces S1 and S2 on the wheels act perpendicular to the slope and balance the perpendicular component of the weight, S1 + S2 = Wcosθ. The friction force F acts up the slope and balances the component down the slope, F = Wsinθ.
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Key terms in this lesson
- Equilibrium
- An object is in equilibrium when the resultant force and the resultant moment acting on it are both zero.
More in Forces in Equilibrium
- Stable Equilibrium
- Tilting and Toppling
- Tilting
- Toppling
- Free Body Force Diagrams
- Triangle of Forces
- Condition for Equilibrium
- How to Lift a Weight
All 20 lessons in Forces in Equilibrium · All AQA AS-level Physics topics