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+// A Textbook of Fluid Mecahnics and Hydraulic Machines - By R K Bansal
+// Chapter 1-Properties of Fluid
+// Problem 1.18
+
+
+//Given Data Set in the Problem(SI Units)
+Area=0.5
+du=0.6
+visc=0.81
+y=2.4/100
+dy=2.4/2/100
+
+//Calculations
+//Case 1:When the thin plate is in the middle
+ss=visc*(du/dy)
+F_upper=ss*Area
+F_lower=ss*Area
+F=F_upper+F_lower
+mprintf("The Total shear force on the thin plate in the middle of the two plates is %f N \n",F)
+
+//Case 2: When the palte is at a distanvce of 0.8 cm from one plate
+dy_upper=y-0.8/100
+dy_lower=0.8/100
+F_upper2=visc*du/dy_upper*Area
+F_lower2=visc*du/dy_lower*Area
+F2=F_upper2+F_lower2
+mprintf("The Total shear force on the thin plate at a distance 0.8 cm from one plate is %f N \n",F2)
+