Gruszka, T. 1994. A Balloon Experiment in the Classroom. The College Mathematics Journal. 25(5): 442-444.
We quote from the article,
“The following experiment involves a balloon, a stopwatch, and a measurement device such as a meter stick. . . . The goals of the experiment include fostering student participation, solving differential equations, dealing with parameters, comparing theory with experiment, and writing a group report.
Students solve the differential equations analytically in each case (i) – (iii) and from the distance the balloon fell (known!) and the time it takes to strike the floor (known!) the parameters k and r, the power of velocity in F(v) = kvr in the differential equation, can be ascertained.
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