1. A state in which an object or system is at rest and all forces and torques acting upon it are balanced, resulting in zero acceleration.
The book resting on the table is in static equilibrium because the normal force balances its weight.
O livro repousando sobre a mesa está em equilíbrio estático porque a força normal equilibra seu peso.
2. In physics, a condition where the net force and net torque on an object are both zero.
For static equilibrium to be maintained, both ΣF = 0 and Στ = 0 must be satisfied.
Para que o equilíbrio estático seja mantido, tanto ΣF = 0 quanto Στ = 0 devem ser satisfeitos.