Use the example given in the reading regarding dimensional homogeneity to help you with the following. What is the equation to determine the terminal settling velocity?

a) vₜ = (d² g (rhoₚ - rho_f))/(18 μ)
b) vₜ = (2g(rhoₚ - rho_f))/(9μ)
c) vₜ = sqrt(gd²(rhoₚ - rho_f))/(18 μ)
d) vₜ = (4g(rhoₚ - rho_f))/(9 μ)