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+//Solutions to Problems In applied mechanics
+//A N Gobby
+clear all;
+clc
+//initialisation of variables
+v=3//tonf
+p1=6.0//tonf,compressive
+p2=5.19//tonf,tensile
+a=30//degree
+b=60//degree
+p3=7//tonf,compressive
+//CALCULATIONS
+P1=p2*sind(b)//tonf,tensile
+P2=1/2*P1//tonf,compressive
+P3=p1*cosd(a)-p3*cosd(b)//tonf,compressive
+P4=P1*cosd(a)*sqrt(3)/P3//tonf,acting towards the left 
+R=P1*sind(a)//tonf,acting downwards
+D=sqrt((P4)^2+(R)^2)//tonf
+T=(R/P4)//to the horizantal
+//RESULTS
+printf('the direction reaction=% f to the horizantal',D)
+printf('the direction reaction =% f to horizantal',T)