m/s2
m
kg/m4
kg/m3
kg/m-s
m/s

Formula

Fall or Settling Velocity :
Vt = gd2 (ρp - ρm)/18μ

Acceleration of Gravity :
g= 18 μ Vt /d2p - ρm)

Particle Diameter :
d= √18 μ Vt /g (ρp - ρm)

Density of Medium :
ρm = ρp - 18 μ Vt/ d2

Particle Density :
ρp = 18 μ Vt /d2+ ρm

Viscosity of Medium :
μ = gd2( ρp - ρm)/18 Vt

Where,
Vt = Fall or Settling Velocity,
g = Acceleration of Gravity,
d = Particle Diameter,
ρm = Density of Medium,
ρp = Particle Density,
μ = Viscosity of Medium.