To determine if a rigid body is in equilibrium the vector sum of the gravitational forces acting on the particles of the body can be replaced by a single force acting at the center of gravity.
Net force is a single force of the vector sum of all the forces, and if the net force is identical to 0 then the item is considered equilibrium.
The middle of gravity is the average place of a load of an item. we will absolutely describe the motion of any object through space in phrases of the interpretation of the center of gravity of the item from one location to any other, and the rotation of the object about its center of gravity if it's far loose to rotate.
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