Stable EquilibriumWhen an object is displaced, it returns to its equilibrium position when released.An object resting on a surface in equilibrium, has two vertical forces acting on it.The weight always acts downwards and through the centre of gravity.The normal contact force acts upwards and is equal and opposite to the weight so there is no resultant vertical force.If the centre of mass is directly above or below the point of support when the object is at rest the object is in stable equilibrium.
Stable Equilibrium
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Specification: AQA Physics (7407), AS-level, 3.4.1.2 Moments and 3.4.1.1 Scalars and vectors. Topic: Forces in Equilibrium.
More in Forces in Equilibrium
- Moments
- The Principle of Moments
- Centre of Mass
- Couples
- Tilting and Toppling
- Tilting
- Toppling
- Objects On a Slope
All 20 lessons in Forces in Equilibrium · All AQA AS-level Physics topics