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+//Fluid system - By - Shiv Kumar
+//Chapter 2 - Impact of Jet
+//Example 2.31
+//To Find (i)The volume of water drawn by the pump per second (ii)The Efficiency of Jet propulsion.
+ clc
+ clear
+
+//Given Data:-
+ F=5890; //Total resistance offered to motion, N
+ a=424; //Total area of Jet, cm^2
+ u=6; //Speed of boat, m/s
+
+//Data Used:-
+ rho=1000; //Density of water, kg/m^3
+
+//Computaions:-
+ a=a/10000; //m^2
+ //For solving Quadratic in V
+ A=rho*a;
+ B=rho*a*u;
+ C=-F;
+ V=(-B+sqrt(B^2-4*C*A))/(2*A); //m/s
+ //(i)
+ Q=a*(V+u); //m^3/s
+ //(ii)
+ eta=2*V*u/(V+u)^2*100; //In percentage
+
+//Results:-
+ printf("(i)The Volume of water drawn by the pump per second=%.4f m^3/s \n", Q) //The answer vary due to round off error
+ printf("(ii)The Efficiency of Jet propulsion, eta=%.2f percent", eta) //The answer vary due to round off error