7-11. 2500 lb 3000 lb 75 1b/ft The shaft is supported by a journal bearing at A and a thrust bearing at B. Determine the normal force, shear force, and moment at a section passing through (a) point C. which is just to the right of the bearing at A, and (b) point D. which is just to the left of the 3000-1b force. 6ft 12 ft