The requirements of the operation demand that the table be stable at all times, and that at moving the box on the table keeps it in place, but when tilting the table, after fixing the wheels, the box begins to slide at an angle no greater than 35:. A first model that is outlined with the intention of validating the static requirements is the one shown in the figure of model 1, in this model, the left support controls the angle of inclination ofthe table by means of a threaded shaft between bolts C and II} which raises and lowers a scissor mechanism. Of right side, vertical supports are used that are Joined by means of Hbolts. Initially, consider that the scissor mechanism is located along the center line ofthe table, which is located midway between the support posts on the right side, the length of each element of the scissors is L. _-_r._ . r____ ._ ..._ __. _ _._.___._.. __._.. __. A1. Regardless of the model chosen, Drawthe Free Body Diagram [consider all the elements and Joints}, include forces, distances, angles. A2. Establish the equations of static equilibrium when the surface ofthe table is at horizontal position. A3. Establish the equations of static equilibrium when the surface ofthe table is inclined, considering the friction force