Consider steady flow of water in a situation where two pipe lines (pipe 1 and pipe 2) combine into a single pipe line (pie-3) as shown in the figure. The cross-sectional areas of all three pipelines are constant. The following data is given:
|
Pipe number
|
Area (m2)
|
Velocity (m/s)
|
|
1
|
1
|
1
|
|
2
|
2
|
2
|
|
3
|
2.5
|
?
|
Assuming the water properties and the velocities to be uniform across the cross section of the inlets and the outlet, the exit velocity (in ms) in pipe 3 is
(a) 1 (b) 1.5 (c) 2 (d) 2.5