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+// Example 5_10
+clc;funcprot(0);
+// Given data
+A_w=100;// The wake area in m^2
+x=100;// m
+// From example 5.7,
+rho_w=0.4;// The density of air in kg/m^3
+V_f=250;// The speed of flight in m/s
+F=2.6*10^4;// The restraining force in N
+
+// Calculation
+V_w=V_f+(F/(rho_w*A_w*V_f));// m/s
+printf("\nThe wake speed,V_w=%3.1f m/s",V_w);