Question

Waterflowsthrough a horizontal pipe at 0.5 m/s. The pipe narrows down causing the pressure drop of 1.33 kPa. What is the water speed in the narrow segment of the pipe? Assume laminarflow and ignore viscosity.

The answer is 1.7 m/s I would just like it explained

Answer 1

Solution- We can use formula

ΔP = .5ρ(v2^2-v1^2)

1.33x 10^3 = .5*1000*v2^2 - .5*1000*0.25

solving this we get v2 =1.7m/s