Question

Water flows at a rate of 800 cm³/min in a pipe of varying cross-sectional areas. Calculate the velocity of the water at the section where;

a) the radius is 3.0 cm; and

b) the radius is 5.0 cm

Answer 1

a)

$$C=vA\\800=\pi(3)^2v\\v=28\frac{cm}{min}$$

b)

$$C=vA\\800=\pi(5)^2v\\v=10\frac{cm}{min}$$