Complex sentence: In physics, static equilibrium, or neutral balance, exists when the forces (actions), and torques, on all components of a defined system are balanced such that no component is undergoing an acceleration relative to the designated frame of reference.
Split into simpler sentences: In physics, static equilibrium, or neutral balance, exists when the forces (actions), and torques, on all components of a defined system are balanced. So that no component is undergoing an acceleration relative to the designated frame of reference.