Zadanie - ciśnienie hydrostatyczne
p = d * h * g
d - 1700 kg/m³
g = 10 n/kg
h - 80 m
p = 1700 km/m³ * 10 n/kg * 80 m
p = 1360000 Pa = 1,4 MPa
Zadanie - Prawo Pascala
a)
S₁ = 3 cm² = 0,0003 m²
S₂ = 9 cm² = 0,0009 m²
F₁ = 400 N
F₂ = ?
F₁/S₁ = F₂/S₂
F₂ = 400 N * 0,0009 m²/ 0,0003 m²
F₂ = 1200 N
b)
P = F₂/S₂
P = 1200 N / 0,0009 m²
P = 1 333 333 Pa = 1,3 MPa
c)
g = 10 m/s²
m₂ = ?
F₂ = m₂ * g
m₂ = F₂/g
m₂ = 1200 N / 10 m/s₂
m₂ = 120 kg