A falling coffee filter quickly
reaches terminal velocity. Use LoggerPro to plot
position
vs time and velocity vs. time.
Compare terminal velocities for
different
numbers of nested filters. The data support a drag force
proportional to v2.
The low-tech version:
Simultaneousy release a stack of four
filters from a height of 2 m, and two filter from 1 m, to show that
they land at the same time.
