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A₁ = 10 dm³ = 0,01 m³
A₂ = 5 dm³ = 0,005 m³
ΔP = 38 cmHg = 50000 N/m²
ρ = 1000 Kg/m₃
Dit :
v = ...................?
Penyelesaian :
2 ΔP
v = A₂ √__________
ρ (A₁² - A₂²)
2 • 50000
v = 0,005 √__________________
1000 • (0,01² - 0,005²)
100000
v = 0,005 √______________
1000 • 7,5 x 10⁻⁵
v = 0,005 √1,33 x 10⁶
v = 0,005 x 1,15 x 10³
v = 5,77 m/s
Jadi, kecepatan aliran zat cair adalah 5,77 m/s
Ok?