F17-5. At the instant shown both rods of negligible mass swing with a counterclockwise angular velocity of w = 5 rad/s, while the 50-kg bar is subjected to the 100-N horizontal force. Determine the tension developed in the rods and the angular acceleration of the rods at this instant. w = 5 rad/s 1.5 m B D 100 N :G 1 m 1 m nob F17 5

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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.