Determine the forces in members EL and LM of the truss shown in E9.3.42. And identify all zero force members. H B 500 N 3@1m=3m K C L M 500 N E W F 4@1m-4m E9.3.42 Determine the forces in members EL and LM of the truss shown in E9.3.42. And identify all zero force members. H B 500 N 3@1m=3m K C L M 500 N E W F 4@1m-4m E9.3.42