The circular hollow shaft is supported by a smooth thrust bearing at A and smooth journa...

The circular hollow shaft is supported by a smooth thrust bearing at A and smooth journal bearing at B . If the shaft is made from steel having an allowable normal stress of σ_allow = 150 MPa and allowable shear stress of τ_allow = 85 MPa, determine the maximum allowable magnitude of the two forces P that can be applied to the shaft. The thickness of the shaft’s wall is t = 5 mm.