A spherical solid ball of volume V is made of a material of density ρ_1. It is falling through a liquid of density ρ_2 (ρ_20). The terminal speed of the ball is

Question

A spherical solid ball of volume V is made of a material of density ρ_1. It is falling through a liquid of density ρ_2 (ρ_2< ρ_1) . Assume that the liquid applies a viscous force on the ball that is proportional to the square of its speed v, i.e., F_{\;	ext "viscous "\;}=-k v^2(k>0). The terminal speed of the ball is

Examsnet · Accepted Answer

Correct Answer is : √‌Vg(ρ1−ρ2)k

AIEEE 2008 Solved Paper