The direction cosines of the centerline OA are cos ex = 0.500, cos 0y = 0.866, and cos 8z = 0, and the direction cosines of the line AG are cos ex = 0.707, cos 0y = 0.619, and cos ez = -0.342. What is the moment about OA due to the 250-N weight? Draw a sketch to indicate the direction of the moment about the shaft. 250 N 600 mm 750 mm