Your weight is the gravitational attraction force between you and the Earth and not a property of mechanical equilibrium. Mechanical equilibrium is a state in which a momentum coordinate of a particle, rigid body, or dynamical system is conserved.

Mechanical equilibrium is:

- the state of rest or balance due to equal action of two opposite forces.

- the equal balance of any powers

No.

A body is mechanical equilibrium if the sum of the net forces acting upon it is zero.

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