Answer:
Pressure = [tex]P2=73.13 lbf/ft^2[/tex]
Explanation:
The pressure is calculated by Bernoulli's equation.
[tex]P1+\frac{1}{2} dVi^2=P2+\frac{1}{2} dVf^2\\[/tex]
Solving it for P2
[tex]P2=P1 +\frac{1}{2} d(Vi^2-Vf^2)[/tex]
Now inserting values
P1 = 0 as it is given that initial point is at atmospheric point.
d= density = 2.05 sl/ft3
Vi = 200 mph = 293.33 ft/s
Vf = 273 mph = 400.4 ft/s
Putting these values
[tex]P2 = 0 + 0.5* 2.05(293.33^2-400.4^2)\\P2=-76sl/ft.s^2[/tex]
Changing the units to pounds per square foot
[tex]P2=73.13 lbf/ft^2[/tex]
