Determine the forces acting in members $BC,CE,$ and EF of the truss shown below. The truss is supported by a pin at A and a roller at D$.$ Use the method of sections. $(25$ pt $)$

$(1)$ Draw Free body diagram of the whole truss $(5$ pt$)$

$(2)$ Use Equilibrium law to find reactions $(15$ pt$)$

$(3)$ Cut through members $(5$ pt $)$

$(4)$ Draw Free body diagram of the section $(5$ pt $)$

$(5)$ Use Equilibrium law to find the forces of the member $(20$ pt$)$