Bravo! That's the right answer.

 

The Equation of Continuity is

A1 v1 = A2 v2

or

An vn = AW vW

For a circular cross section, A = r2 or A = (d/2)2 or A = d2 / 4

[ (3.5 cm)2 / 4 ] vn = [ (5.5 cm)2 / 4 ] [2.5 m/s]

vn = [ (5.5 cm)2 / 4 ] [2.5 m/s] / [ (3.5 cm)2 / 4 ]

vn = [ (5.5 )2] [2.5 m/s] / [ (3.5)2 ]

vn = [ (5.5 )2/(3.5)2] [2.5 m/s]

vn = 6.2 m/s

(c) 2000, Doug Davis; all rights reserved.