$(12$ marks$)$ For the beam shown below where $w=1ki\frac{p}{f}t,$ evaluate the shear and moment functions for $($a$)0x<mn>6</mn><mi>f</mi><mi>t</mi>$; $($b$)A15ft.$ Next, draw the shear and moment diagrams. Note that $Ais$ considered a roller support$\mathrm{.}12ft$; and $(d)15ft.$ Next, draw the shear and moment diagrams. Note that $Ais$ considered a roller support$\mathrm{.}6ft$; $(c)12ft$; and $(d)15ft.$ Next, draw the shear and moment diagrams. Note that $Ais$ considered a roller support.

show full steps and solve