Engineering Mechanics
The principle of transmissibility of forces states that, when a force acts upon a body, its effect is

Maximum, if it acts at the center of gravity of the body
Minimum, if it acts at the center of gravity of the body
Same at every point on its line of action
Different at different points on its line of action

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Engineering Mechanics
The moment of a force

Is equal to the product of force acting on the body and the perpendicular distance of a point and the line of action of the force
All of these
Is the turning effect produced by a force, on the body, on which it acts
Is equal to twice the area of the triangle, whose base is the line representing the force and whose vertex is the point, about which the moment is taken

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