Consider the statically indeterminate beam shown in the figure. Using the Flexibility method by removing the vertical support at node $B$ to create the 'primary' structure find the vertical reactions at nodes A and $B.$ Positive $y$ axis is indicated in the figure. The beam is of uniform stiffness with $El=$ const.

Select one:

Ray $=-5\mathrm{.}25kN,Rby=-12\mathrm{.}25kN$

Ray $=-5\mathrm{.}25kN,Rby=12\mathrm{.}25kN$

Ray$=5\mathrm{.}25kN,Rby=-12\mathrm{.}25kN$

Ray $=2\mathrm{.}25kN,$ Rby $=9\mathrm{.}25kN$