The gear rolls on the fixed rack B. At the instant shown, the center O of the gear is moving with a velocity of Vo = 6 m / s and an acceleration of a0 = 3 m / s ^ 2. Determine the angular acceleration of the gear and the acceleration of point A at this in

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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.