The plane truss shown below is supported by a pin at A and a roller at M. The weight of all the members is negligible. The force P = 3+last digit of your Student ID number (SID) (in kN) (e.g. for SID=543004567, P= 3+7=10 kN). (a) Determine the reactions at A and M. (b) Determine the force in members EF, GI, GJ and IJ, and state if the members are in tension or compression. Note that a relevant free-body diagram is required. H 1 m D F L N 1 m A g M E K Y P -Im --1m -1m -1m --1m - 1m