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+clc
+//Example 7.8
+//Calculate the thrust on a rocket
+m=1000//Kg/s
+v_out=-3000//m/s its in the negative y direction
+v_in=0//m/s
+A=7//m^2
+P=35000//Pa
+F_thrust=(-m*(v_out-v_in)+P*A)/1000000//MN
+printf("The thrust on the rocket is %f MN",F_thrust); \ No newline at end of file