A target in a shooting range consists of a square wooden board of side length S = 0.500 meter and mass mT = 0.750 kg, that pivots on a horizontal axis along its top edge. The target is struck, normally, at its center by a bullet of mass mB = 1.90 g that is travelling initially at vi = 360 m/s. The bullet goes completely through the target, emerging at only vf = 100 m/s on the opposite side. What is the angular speed of the target just after the collision?