Question: Two identical slender rods AB and BC are welded together to form an L-shaped assembly. The assembly is pressed against a spring at D and

Two identical slender rods AB and BC are welded together to form an L-shaped assembly. The assembly is pressed against a spring at D and released from the position shown. Knowing that the maximum angle of rotation of the assembly in its subsequent motion is 90? counterclockwise, determine the magnitude of the angular velocity of the assembly as it passes through the position where rod AB forms an angle of 30? with the horizontal.

h D B www. 20 in. A 20 in.

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