The vector sum of all external forces acting on the body must be zero.
Statics is the branch of mechanics that studies the conditions for the equilibrium of bodies. Equilibrium is a state where a body remains at rest or moves uniformly and rectilinearly relative to a chosen inertial frame of reference. 2. Key Concepts fizika 10 miakishev konspekt uroka po teme statika
The algebraic sum of the moments of all external forces about any axis of rotation must be zero. ∑Mi=0sum of cap M sub i equals 0 The vector sum of all external forces acting