8. A large cylinder is connected to a cylindrical pulley and a hanging block by a frictionless string as shown in the figure. The masses of the cylinder, pulley and block are identical and equal to M. The radius of the cylinder is exactly twice the radius of the pulley. The cylinder is allowed to roll without slipping, and there is also no slipping between the pulley and the string. (Hint: The moment of inertia of a cylinder of mass M and radius R rotating Cylinder 2R Pulley 글MR2) M about its center is: I = OM M 8a) When the system is released from rest, what is the speed of the block after it has dropped a height h?

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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.