A solid circular cylinder slides inside a vertical smooth pipe. The space between the cylinder and the pipe is lubricated with an oil film. Calculate the terminal velocity of the cylinder. The following information is available:

Pipe diameter: $D=100\mathrm{.}5mm$

Cylinder diameter: $d=100mm$

Cylinder length: $l=300mm$

Cylinder weight: $W=50N$

Oil: SAE $10$W$-30($viscosity of $0\mathrm{.}15$ Pa $.$s$)$

A solid circular cylinder slides inside a vertical smooth pipe. The space between the cylinder and the pipe is lubricated with an oil film. Calculate the terminal velocity of the cylinder. The following information is available:

Pipe diameter: $D=100\mathrm{.}5mm$

Cylinder diameter: $d=100mm$

Cylinder length: $l=300mm$

Cylinder weight: $W=50N$

Oil: SAE $10$W$-30($viscosity of $0\mathrm{.}15$ Pa $.$s$)$