Question

Water of pressure 4 x 10⁴ N/m² is flowing through a pipe of cross sectional area 0.02 m² with velocity 2m/s, the emerging cross-sectional area of the pipe is 0.01 m². What is pressure in the pipe of low cross-sectional area?

Answer 1

P₁ = 4 x 104 N/m²; v₁ = 2 m/s; A₁ = 0.02 m²;

A₂ = 0.01 m²; P₂ = ?; ρ = 10³ kg/m³

From equation of continuity