The beam in Figure P7.16 has the cross section shown in Figure P7.14. A load P = 20 kN is...

The beam in Figure P7.16 has the cross section shown in Figure P7.14. A load P = 20 kN is applied at its center and it is supported by distributed loads of magnitude w. Determine the maximum tensile and compressive lìexural stresses that act on the section 1.5 m from the left end and at midspan of the beam.

FIGURE P7.16

FIGURE P7.14