$($adapted from Hibbeler ${10}^{th}$ ed$.$ prob. $6-131)$

Determine the maximum uniform distributed load wo that

can be supported by the reinforced concrete beam if the

allowable tensile stress for the steel is $28$ ksi and the

allowable compressive stress for the concrete is $3$ ksi $.$

Assume the concrete cannot support a tensile stress. Take $E_{\text{s}\text{t}\text{e}\text{e}\text{l}}=29M,E_{\text{c}\text{o}\text{n}\text{c}\text{r}\text{e}\text{t}\text{e}}=3\mathrm{.}6M.$

Answer: $w_0=1\mathrm{.}03ki{p}^{**}ft$