Question

Explain what is moment?

Answer 1

The Moment of a force is a measure of its tendency to cause a body to rotate about a specific point or axis. ... A moment is due to a force not having an equal and opposite force directly along it's line of action.

Moments are usually defined with respect to a fixed reference point; they deal with physical quantities as measured at some distance from that reference point. For example, a moment of force is the product of a force and its distance from an axis, which causes rotation about that axis.