. _:b20013 . "Moment of force is the effectiveness of a force to produce rotation about an axis measured by the product of the force and the perpendicular distance from the line of action of the force to the axis."@en . _:b20108 . _:b20108 . . "moment of force"@en . _:b20012 . _:b20013 . . _:b20013 . . _:b20012 . _:b20108 . _:b20108 . _:b20012 . "M" . . "moment"@en . _:b20012 _:b20013 .