Answer
70 percent
Work Step by Step
We adjust the equation found in example 15.7 to find:
$\frac{A_2}{A_1}=\sqrt{\frac{2\Delta P}{\rho (v_1)^2}+1}$
$\frac{A_2}{A_1}=\sqrt{\frac{2(.05)(10,000)}{(1060) (.3)^2}+1}=3.39$
Thus, we find how much is not obstructed:
$\frac{1}{3.39}=.295=29.5$%
Thus, 70% of the artery is obstructed.
