Extracted text: The semicircular disk of mass m = 4.7 kg and radius r = 645 mm is released from rest at 0 = 0 and rotates freely in the vertical plane about its fixed bearing at O. Calculate the n- and t-components of the force F on the bearing when 0 = 56°. The components Fn and F; are positive if in the positive n- and t-directions respectively, negative if opposite. Answers: Fn = N %3D Ft =