Question: A semicircular panel of radius r is attached with hinges to a circular plate of radius r and initially held in the vertical position as

A semicircular panel of radius r is attached with hinges to a circular plate of radius r and initially held in the vertical position as shown. The plate and the panel are made of the same material and have the same thickness. Knowing that the entire assembly is rotating freely with an initial angular velocity ω0, determine the angular velocity of the assembly after the panel has been released and comes to rest against the plate.

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