A solid wood doors 1 meter wide and 2 meter high is hinged along one side and has a total mass of 50 kilogram. Initially open and at rest, the door is struck at its center by handful of sticky mud with mass 0.600 kilogram, traveling perpendicular to the door at just before impact with speed 1 m/s.
a) Evaluate the final angular speed of the door?
b) Evaluate what the final kinetic energy of the system?