// Problem no 10.2,Page No.250 clc;clear; close; //Taking moment at Pt A we get R_B=100*8*4**-1 //Applying the summation of vertical forces we get R_AV=-R_B //Applying the summation of horizontal forces we get R_H=100 //joint B //Applying the summation of vertical forces we get F_CB=R_B //Applying the summation of horizontal forces we get F_AB=0 //As there is no force to balance in horizontal direction //joint A //Applying the summation of horizontal forces we get F_AC=R_H*(cos(45*%pi*180**-1))**-1 //Applying the summation of vertical forces we get F_AD=200-F_AC*sin(45*%pi*180**-1) //joint C //Applying the summation of vertical forces we get F_EC=200-F_AC*cos(45*%pi*180**-1) //Applying the summation of horizontal forces we get F_DC=F_AC*cos(45*%pi*180**-1) //joint D //Applying the summation of horizontal forces we get F_DE=F_DC*(cos(45*%pi*180**-1))**-1 //DF and EF are null members at this joint as each member individually has nothing to balance F_DF=0 F_EF=0 //Result printf("The Forces in Each members are as follows:F_AB = %.1f kN",F_AB) printf("\n :F_CB = %.1f kN (compressive)",F_CB) printf("\n :F_AC %.2f",F_AC);printf(" KN(Tensile)") printf("\n :F_AD=%.1f kN (Tensile)",F_AD) printf("\n :F_EC=%.1f kN N(Compressive)",F_EC) printf("\n :F_DC=%.1f kN N(Compressive)",F_DC) printf("\n :F_DE %.2f",F_DE);printf(" KN(Tensile)") printf("\n :F_DF = %.f kN",F_DF) printf("\n :F_EF = %.f kN",F_EF)