Bravo! That's the right answer.

 

The Equation of Continuity is

A₁ v₁ = A₂ v₂

or

A_n v_n = A_W v_W

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

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

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

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

v_n = [ (5.5 )²/(3.5)²] [2.5 m/s]

v_n = 6.2 m/s

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