We will be dropping groups of coffee filters (1, 2, 3, and possibly 4) underneath a sonic ranger and determining the approximate terminal velocity of each group.

We would like to learn something about the air drag on the filters. In particular, we want to find out whether the drag is proportional to the magnitude of the velocity (linear drag) or more like proportional to the square of the velocity (quadratic or turbulent drag).

You should obtain graphs of displacement vs time and velocity vs time. Make a sketch of each graph in your report, including numerical information and labels on the axes. From each graph, make an estimate of the maximum velocity, and say whether this velocity is 'terminal' or not, in your opinion.

Based on the terminal velocities you estimate from the graphs, you must decide how the drag force depends on velocity. Remember that the weight is balanced by the drag force when an object reaches 'terminal' velocity'. Make sure I know what process you go through to decide about the nature of the drag force.