For the instant represented, crank OB has a clockwise angular velocity ω = 0.8 rad/sec and is passing the horizontal position. Determine the corresponding velocity of the guide roller A in the 20° slot and the velocity of point C midway between A and B.

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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.