--> //initializations

--> c=50 //KN/m^2 (cohession)
 c  = 

   50.


--> x=0 //(angle ay shear)
 x  = 

   0.


--> b=11 //m (horizontal distance)
 b  = 

   11.


--> r=24 //m (radius)
 r  = 

   24.


--> y=65 // (angle)
 y  = 

   65.


--> z=50 // (angle at A)
 z  = 

   50.


--> d=14 //m (distance A to D)
 d  = 

   14.


--> M=2518 //KN (weight of wedge ABD)
 M  = 

   2518.


--> //calculations

--> La=(2*%pi*r*y)/360 //(length of arc AB)
 La  = 

   27.227136


--> Mo=M*b //(Actuating moment)
 Mo  = 

   27698.


--> Mr=c*La*r //(resisting moment)
 Mr  = 

   32672.564


--> Fc=Mr/Mo //(factor of safety)
 Fc  = 

   1.1796001


--> //results

--> printf('factor of safety=%f',Fc)
factor of safety=1.179600
