In a playground, there is a turntable that rotates freely without friction. The turntable is a uniform disk with a radius of 2 m and a mass of 75 kg and is initially rotating at 1.2 rad/s. Junior with a mass of 40 kg drops vertically from a tree branch onto the turntable landing and sticking at a point 1.5 m from the center. What is the final angular velocity of the turntable after Junior lands on it?

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