Engin 52 Ex. 1 The 10-in.-radius brake drum is attached to a larger flywheel that is not shown. T total mass moment of inertia of the drum and the flywheel about point C is 15 lb ft s2 a the coefficient of kinetic friction between the drum and the brake shoes is 0.35. When t hydraulic cylinder F is actuated, it exerts a force of 30 lb directed to the right on point E and to the left on point E. Knowing that the angular velocity of the flywheel is 360 rpm counterclockwise when F is actuated, determine the number of revolutions executed by the flywheel before it comes to rest. HW 19 D. 6'in. 6 in. B 12 in. 12 in. 6 in. 6 in. 10 in. Hint : A, A.

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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.