5 axioms of static equilibrium

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A body at rest or completely motionless is in static equilibrium.
The five physical actions that demonstrate the concepts of static equilibrium are

1. A body acted upon by two forces is in a state of static equilibrium only if the two forces are of the same intensity, lie along the same line of action, and are oriented in opposite directions along the line. The net external force on the system must be zero. For instance, a motionless person is in static equilibrium if the forces acting on him add up to zero, in this case the force are vertical in nature. (A body at rest must remain at rest)

2. Stability must be maximized by determining a body's center ...