The ABC bar has a mass of 2.4 kg and is connected to a support on B. An 800 g D sphere reaches the end A of the bar with a vertical velocity v1 of 3 m / s. Knowing that L = 750 mm and that the coefficient of refund between the sphere and the ABC bar is equal to 0.5, determine immediately after the shock, the angular velocity of the ABC bar and the velocity of the sphere.

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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.