The 20-lb plate is mounted on the shaft AB so that the plane of the plate makes an angle 0-30° with the vertical. If the shaft is turning in the direction shown with an angular velocity of 50 rad/s, determine the vertical reactions at the bearing supports A and B when the plate is in the position shown. (Mass moment of inertia for a square plate with mass=M and side length a equals 1/6 M a²)

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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.