If the allowable bearing stress for the material under the supports at A and B is (σb)allo...

If the allowable bearing stress for the material under the supports at A and B is (σb)allow = 1.5 MPa, determine the maximum load P that can be applied to the beam. The bearing plates A' and B' have square cross sections of 150 nun × 150 nun and 250 mm × 250 nun, respectively.