16-139. The block B of the "quick-return" mechanism is confirned to move within the slot in member CD. If AB is rotating at a constant rate of @AB = 3 rad/s, determine the angular velocity and angular acceleration of member CD at the instant shown. C A- 30° WAB 3 rad/s = B 30° 50 mm 200 mm D

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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.