Question: A solid wood door 1.20 m wide and 2.50 m high is hinged along one side and has a total mass of 42.0 kg .

A solid wood door 1.20 m wide and 2.50 m high is hinged along one side and has a total mass of 42.0 kg . Initially open and at rest, the door is struck at its center by a handful of sticky mud with mass 0.400 kg , traveling perpendicular to the door at 14.0 m/s just before impact.

Find the final angular speed of the door.

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