Q$5.($Textbook question $3\mathrm{.}19,$ page $114)$

Determine the force in members JK$,$ JN and CD$.$ State if the members are in tension or

compression. Identify all the zero force members.

Ans: $CD=10kN(T),JN=12\mathrm{.}5kN(1),JK=20\mathrm{.}2kN(C)$

Members KN$,$ NL$,$ MB$,$ BL$,$ CL$,$ IO$,$ OH$,$ GE$,$ EH$,$ HD are zero force members.