Question

what is stokes law ? deduce an expression for terminal velocity​

Answer 1

Answer:

According to stokes law, the backward viscous force acting on a small spherical body of radius r moving with velocity v through fluid of viscosity ηis given by F=6xηrv. Terminal velocity is the maximum Uniform velocity of the spherical body moving in a fluid. In equilibrium, U+F=ˉw. ⇒43πr3σg+6πηrv=43πr3ρg,v=29.1