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+clear
+clc
+//Example 11.2 DRAG ON A SPHERE
+V=0.08; //speed[m/s]
+d=0.012; //[m]
+Ap=%pi*d^2/4 //area[m^2]
+rho=850; //density[Kg/m^3]
+mu=10^-1; //[N.s/m^2]
+Re=V*d*rho/mu //Reynolds number
+//From fig. 11.4
+Cd=5.3; //coefficient of drag
+//Drag force
+Fd=(Cd*Ap*rho*V^2)/2 //[N]
+printf("\nThe drag of a 12 mm sphere = %.5f N.\n",Fd)
+\ No newline at end of file