Question

Blood is flowing at the rate of 100 cm^3s in a capillary tube of cross sectional area 0.25 m^2 what is velocity of flow

Answer 1

Answer:

Velocity of blood flow = $4\times 10^{-4}\ m/s$

Explanation:

V = volume of blood flowing per second = 100 $cm^{3}/s$ = $10^{-4}\ m^{3}/s$

A = area of cross-section of the tube = 0.25 $m^{2}$

u = velocity of flow of blood

Now using the formula for volume of liquid flowing through a cross-section,

V = A × u

u = $\frac{V}{A}$

Plugging the values into above equation,

u = $\frac{10^{-4}\ m^{3}/s}{0.25\ m^{2}}$

u = $4\times 10^{-4}\ m/s$

Answer 2

ans: 0.4 mm/s

Explanation:

5V = 200 × 10^6

V = 4 × 10^4 m/s

V = 0.4 mm/s