For the left figure below, replace the distributed loads by an equivalent resultant force and a couple moment acting at point A. (See the right figure below.) Let a = 3.35 m, w = 5.20 kN/m, and wz = 4.95 kN/m MRA W, Calculate the resultant force, FR. and the couple moment, MR.A. Don't forget to include the appropriate signs with your numerical answers.

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Bending Moment

In general, we can define the bending moment as the reaction induced when a certain amount of load or force is applied to an element which makes it bend.