Q$/2$ A simple truss has a hinge $($pin$)$ support at A and a roller support at M$.$ A pulley with a $0\mathrm{.}75m$ radius is attached to the truss at $E.$ A cable supporting a $20kN$ weight passes over the pulley and is attached to the truss at $G.$ The beam KL is hung from the truss by cables attached at points J and F$.$ The beam supports the distributed load shown and a point load of $6kN.$ Determine:

$($a$)$ The external support reactions at A and $M,$

$($b$)$ The tensions in cables KJ and LF$,$ and

$($c$)$ The force in each member of the truss and state whether the member is in tension, compression or a zero force member.