The engine mechanism shown in the figure below has crank OB = 50 mm and length of connecting rod AB = 225 mm. The center of gravity of the rod is at G which is 75 mm from B. The engine speed is 200 rpm. For the position shown, in which OB is turned 45° from OA, Find the following: a. velocity of G and the angular velocity of AB; and, b. the acceleration of G and angular acceleration of AB.

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Conservation of Energy

In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be created or destroyed — only transformed.