The radius of the aorta is about 1.3 cm , and the blood passing through it has a

ID: 1419742 • Letter: T

Question

The radius of the aorta is about 1.3 cm , and the blood passing through it has a speed of about 45 cm/s .

Part A

Calculate the average speed of blood flow in the major arteries of the body, which have a total cross-sectional area of about 2.1 cm2 .

Express your answer to two significant figures and include the appropriate units.

The radius of the aorta is about 1.3 cm , and the blood passing through it has a speed of about 45 cm/s .

Part A

Calculate the average speed of blood flow in the major arteries of the body, which have a total cross-sectional area of about 2.1 cm2 .

Express your answer to two significant figures and include the appropriate units.

here,

radius of the arota , ra = 1.3 cm

speed of blood , va = 45 cm/s

cross sectional area , area = 2.1 cm^2

let the average speed of blood be v

using equation of continuity

area * v = va * pi * ra^2

2.1 * v = 45 * pi * 1.3^2

v = 113.71 cm/s

v = 1.14 m/s

the average speed of blood in the major arteries is 1.14 m/s

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