Rod AB is fixed to a smooth collar D, which slides freely along the vertical guide shown in (Figure 1). Point C is located just to the left of the concentrated load P = 65 lb. Suppose that w = 16 Ib/ft. Follow the sign convention.

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Engineering Drawing

Technical drawing has been around since ancient times. As in the ancient Renaissance, complicated drawings were created, including Leonardo da Vinci's drawing. Modern engineering drawing, including its specific orthographic projection with scale conventions, began in Europe (France) during the early stages of Industrialization. L.T. C. Rolt also made some of Marc's drawings for its block-making machinery (in 1799) that also may have contributed significantly to British engineering technology. Since he learned the art of presenting three-dimensional(3D) items in a two-dimensional(2D) plane, as we now term mechanical drawing.