Two solid spheres P and Q have density 8 g cm⁻³ and diameters 1 cm and 0.5 cm. P falls in a liquid of density 0.8 g cm⁻³, viscosity η = 3 poise; Q falls in a liquid of density 1.6 g cm⁻³, viscosity η = 2 poise. Find vP/vQ at terminal speed.
Physics · Properties of solid and fluid
Two solid spheres P and Q have density 8 g cm⁻³ and diameters 1 cm and 0.5 cm. P falls in a liquid of density 0.8 g cm⁻³, viscosity η = 3 poise; Q falls in a liquid of density 1.6 g cm⁻³, viscosity η = 2 poise. Find vP/vQ at terminal speed.