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Verified answer
FLUIDA BERGERAK• kontinuitas
indeks ₁ ₂ ₃ untuk menyatakan titik A B C
A₁ = 100 cm². v₁ = __?
A₂ = 80 cm². v₂ = __?
A₃ = 300 cm². v₃ = 4 m/s
Pada fluida ideal mengalir, berlaku persamaan kontinuitas (debit konstan)
Q₁ = Q₂ = Q₃
A₁ v₁ = A₂ v₂ = A₃ v₃
100 v₁ = 80 v₂ = 300 • 4
diperoleh
100 v₁ = 300 • 4
v₁ = 3 • 4
v₁ = 12 m/s ✓
dan
80 v₂ = 300 • 4
v₂ = 300 • 4 / 80
v₂ = 15 m/s ✓