An incandescent lamp mounted in a socket hangs from the ceiling. What are the forces acting on the lamp?

An incandescent lamp mounted in a socket hangs from the ceiling. What are the forces acting on the lamp? What is the name of the point through which the line of action of these forces passes?

The force of gravity, the force of the reaction of support. The line of action of these forces passes through the center of gravity (masses).

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