Conditions for Static Equilibrium
For an object to be in Static Equilibrium, two conditions has to be fulfilled i.e. Translational Equilibrium and Rotational Equilibrium. These conditions make sure that the object is not experiencing any linear or angular acceleration, meaning it is at rest or moving with a constant velocity. .
Translational Equilibrium
The vector sum of all external forces acting on the object must be zero and mathematically, it is expressed as: ∑ Fk = 0. This equation states that the net force acting on the object (the sum of all individual forces) is zero.
Rotational Equilibrium
The sum of all external torques acting on the object must be zero and mathematically, it is expressed as: ∑ ͳk = 0.This equation states that the net torque acting on the object (the sum of all individual torques) is zero.
For an object to be in static equilibrium then above conditions must met simultaneously so that object must be in static equilibrium. If either condition is not satisfied, then object will experience translational or rotational acceleration, indicating a dynamic state.
Static Equilibrium
Static Equilibrium refers to the physical state of an object when it is at rest and no external force or torque is applied to it. In Static Equilibrium, the word ‘static’ refers to the body being at rest and the word ‘equilibrium’ refers to the state where all opposing forces cancel out each other and the net force on the object becomes zero.
In this article, we will discuss more about Static Equilibrium, the classification of static equilibrium, its examples, and the difference between Static and Dynamic Equilibrium.
Table of Content
- What is an Equilibrium?
- What is Static equilibrium?
- Static Equilibrium of a Rigid Body
- Difference Between Static and Dynamic Equilibrium
- Importance of Static Equilibrium
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