A simply supported beam supports a uniformly distributed load. The intensity of the

load, q $,$ is $3\mathrm{.}5k\frac{N}{m}.$ The length of the beam, L $,$ is $3\mathrm{.}3$ m $.$

Calculate the maximum bending stress if the beam has a rectangular cross$-$section of

height, $h=150\mathrm{.}0mm$ and width, $b=250\mathrm{.}0mm.$

Enter your answer in MPa to two decimal places.