Question

example of static equilibrium​

Answer 1

So static equilibrium means the resultant force is zero and the object is not moving. Examples are: an object (e.g book) lying still on the surface (e.g table). no resultant moment about a pivot, so clockwise moment equals anticlockwise moment and there is no resultant force and no motion either.

Answer 2

Explanation:

In classical mechanics, a particle is in mechanical equilibrium if the net force on that particle is zero. By extension, a physical system made up of many parts is in mechanical equilibrium if the net force on each of its individual parts is zero