BP2) A 6" diameter pulley attached to a 1" diameter shaft of 2" length is supporting a load of 2000 lb. Moment at point b is 4,000 lb-in, Torque at point b is 6,000 lb-in, max bending stress at point...

BP2) A 6" diameter pulley attached to a 1" diameter shaft of 2" length is supporting a load of 2000 lb. Moment at point b is  4,000 lb-in, Torque at point b is 6,000 lb-in, max bending stress at point b is 40.7 ksi, and max shear stress is 30.56 ksi.

Determine principle stresses at point B.