Problem 1 The shaft with a circular cross-section is supported by two bearings at O and C. The bearings do not exert any moments or axial force on the shaft, and

they act to constrain motion along the x and y axes. Find the minimum diameter required for the shaft if the maximum normal stress in the shaft cannot exceed 250 MPa. All dimensions are in mm. 60 -100 5 KN 1 kN 2 kN 1.5 kN