The shaft is supported at ils ends by two bearings a and band is subjected to the forces applied to lhe pulleys fixed to the shaft. determine the resultant internal loadings acting on the cross section at point c. the 400-n forces act in the - z dir ection and the 200-n and 80-n forces act in the y direction. the journal bearings at a and b exert only y and z components of force on the shaf1.