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clear
//
//variable declaration
PC=1500.0 //Vertical loading at C,N
CD=2.0
AC=1.5
BD=1.0
AB=4.0
x=(((AC**2)-(BD**2))/4)+1
y=sqrt((AC**2)-(x**2))
alpha=acos(x/AC)
beta1=acos((CD-x)/BD)
//Applying Lami’s theorem to the system of forces acting at point C
T1=PC*sin(%pi/2)/sin(%pi-alpha)
T2=PC*sin((%pi/2)+alpha)/sin(%pi-alpha)
T3=T2*sin(%pi/2)/sin((%pi/2)+beta1)
W=T2*sin(%pi-beta1)/sin((%pi/2)+beta1)
printf("\n W= %0.2f N",W)
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