Calculate the combined moment of the two forces about the axis OA, using (a) the vector method; and (b) the scalar method (use trigonometry to find the moment arm of each force about the axis OA).

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Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.