1. Calculate the percent error between the theoretical time of flight and the mean of the measured

times of flight, for each of the loads, 20 g, 40 g, and 60 g.

2. For the 20 g load, graph velocity (on y-axis) vs time (on x-axis). Does the graph eventually level

off? Estimate the terminal velocity from the graph in m/s. Repeat for the 40 g and 60 g loads.

Use equations (1a), (1b) and the data you recorded for pair, A, Mballoon, Cd, and g to find an

expected value for the terminal velocity, Vterm for the 20 g load. Compare your expected value

with the experimental result. Repeat for the 40 g and 60 g loads.

3.