Question

Ada yang bisa bantu?

Answer 1

D = 0,5 mm
r = 0,25 mm = 2,5*10⁻⁴ m
ρ benda = 1000 kg/m³ (tetes hujan = air)
ρ udara = 1,3 kg/m³
η = 1,8*10⁻⁵ kg / (m*s)
g = 10 m/s²
v = ?
v = (²/₉) * (g*r²/η) * (ρ benda - ρ fluida)
v = (²/₉)* (10 * (2,5*10⁻²)² / 4) * (1000 - 1,3) ≈ 7,7 m/s