Answer
The average speed of blood in the aorta is $0.28~m/s$
Work Step by Step
We can find the average speed of blood in the aorta:
$A~v = \frac{V}{t}$
$v = \frac{V}{A~t}$
$v = \frac{8.5\times 10^{-5}~m^3}{(3.0\times 10^{-4}~m^2)(1.0~s)}$
$v = 0.28~m/s$
The average speed of blood in the aorta is $0.28~m/s$.
