Question
Find the terminal velocity of a spherical bacterium (diameter $2.00 \textrm{ }\mu\textrm{m}$) falling in water. You will first need to note that the drag force is equal to the weight at terminal velocity. Take the density of the bacterium to be $1.10 \times 10^3 \textrm{ kg/m}^3$.

$2.39 \times 10^{-6} \textrm{ m/s}$

Solution Video