A small sphere of mass 9.20 x 10^-5 kg and radius 5.90 x 10^-4 m falls through a fluid of viscosity 0.36 kg/(ms). Assume that

Question

A small sphere of mass 9.20 x 10^-5 kg and radius 5.90 x 10^-4 m falls through a fluid of viscosity 0.36 kg/(ms). Assume that the viscous force (or drag force) is given by Stokes' Law.
(a) Calculate the viscous force (in N) when the sphere has a speed of 3.4 cm/s.

(b) What is the terminal speed (in cm/s) of the sphere?

Kunduz · Accepted Answer

Click to see the answer