What is the tension force in static equilibrium ?

Hint: A particle is in mechanical equilibrium if its net force is negative, according to classical mechanics. By definition, if the net force on one of its individual parts is zero, a physical structure made up of several parts is in mechanical equilibrium.

Complete answer:
When it comes to forces, an entity or device is considered to be in balance when the net force acting on it is negative (forces are balanced). The term "static equilibrium" refers to a state in which the net force is negative and the material is stationary (as opposed to dynamic equilibrium, in which the object is in motion).

If we have a mass hanging from a non-moving rope, the friction force in the rope holding it up will be equal to and contrary to the force of gravity pulling the weight down. Because the forces are balanced, the net force acting on the box is zero.

As a result, it is in a state of steady equilibrium and does not change. The rope would snap if the force of gravity was stronger than the friction in the rope, and the object would accelerate downwards, no longer in balance, until it came to rest on the earth (back into static equilibrium).

Note: The pull, which is called friction, is the direction of tension. As a result, the stress would be directed away from the mass and toward the string/rope. The thread forces the mass upwards in the case of a hanging mass, so the string/rope exerts an upper force on the mass and the stress is on the upper side.