At the instant shown, drum D rotates at a constant angular velocity of 10.00 rad/s counterclockwise. At the same time, the angular velocity of rod AB is 5.00 rad/s counterclockwise. The acceleration of point A is 15.00 m/s*2 directed to the right. (1)  Find the magnitude of the angular acceleration of rod AB? (2)  Determine the magnitude of the acceleration of collar 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.