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//Fluid system - By - Shiv Kumar
//Chapter 2 - Impact of Jet
//Example 2.34
clc
clear
//Given Data:-
F=100800; //Total resistance offered to motion, N
a=0.8; //Total area of Jet, m^2
u=5; //Speed of boat, m/s
//Data Used:-
rho=1000; //Density of water, kg/m^3
//Computations:-
//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
//(a)
Q=a*(V+u); //m^3/s
//(b)
eta=2*V*u/(V+u)^2*100; //In percentage
//Results:-
printf("(a)The Volume of water drawn by the pump per second=%.1f m^3/s \n", Q)
printf("(b)The Efficiency of Jet propulsion, eta=%.2f percent", eta) //The answer vary due to round off error
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