
1980PeastrelTerminal velocity of a shuttlecock
20 Jun 2015  Contributor(s):: M. Peastrel, R. Lynch, A. Armenti, A. Armenti Jr.
Peastrel, M., R. Lynch Lynch, and A.Armenti, Jr. 1980. Terminal velocity of a shuttlecock in vertical fall. American Journal of Physics. 48(7): 511513.Article Abstract: We have performed a straightforward vertical fall experiment for a case where the effects of air resistance are important...

1994GruszkaModeling falling balloon  experiment and analysis
20 Jun 2015   Contributor(s):: T. Gruszka
Gruszka, T. 1994. A Balloon Experiment in the Classroom. The College Mathematics Journal. 25(5): 442444. 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...

1994MintonProgression of Projectiles  Examples from Sports
12 Sep 2017   Contributor(s):: Brian Winkel
Minton, Roland. 1994. A Progression of Projectiles  Examples from Sports. The College Mathematics Teacher. 28(5): 436442.There is a progression of complexity and issues in projectile motion modeling from no rsistance, to resistance proportional to velocity, then to velocity...

1999BrauerWhat Goes Up Must Come Down
20 Jun 2015   Contributor(s):: F. Brauer
Article Review and Annotation Brauer, F. 1999. What Goes Up Must Come Down. American Mathematical Monthly. 108(5): 437440. This paper is a wonderfully general analysis of the following, “It is natural to ask whether a particle propelled upwards takes longer to fall to...

1999MeadeStruthersParachute Problem
20 Jun 2015   Contributor(s):: Douglas B. Meade, Allan A. Struthers
Meade, Douglas B. and Allan A. Struthers. 1999. Differential Equations in the New Millennium: The Parachute Problem. International Journal of Engineering Education. 15(6): 417424. Article Abstract: Introductory courses in differential equations have traditionally consisted of a long...

2004PhoebusReilyTheParachuteProblem
09 Dec 2018   Contributor(s):: Brian Winkel
Phoebus, Ronald and Cole Reilly. 2004, Differential Equations and the Parachute Problem. Presentation 10 May 2004. https://mse.redwoods.edu/darnold/math55/DEproj/sp04/coleron/presentation.pdf .Abstract: The parachute problem is a classical first semester differential equations problem often...

2006LoydWodarz Drug Resistance in Acute Viral Infections
18 Sep 2017   Contributor(s):: Brian Winkel
Loyd, Alun L. and Dominik Wodarz. 2006. Drug Resistance in Acute Viral Infections: Rhinovirus as a Case Study. Preprint. 21 pp. http://www4.ncsu.edu/~allloyd/pdf_files/resistance_preprint.pdf . Accessed 18 September 2017.Abstract: The emergence and spread of drug resistant...

2008WillHansenExamplesOfODEsInPhysics
09 Dec 2018   Contributor(s):: Brian Winkel
WittHansen, Ole. 2008. Examples of the Differential equations of Physics. www.olewitthansen.dk. Contents1. The dependence of pressure with altitude.............................................................................. 12. Radioaktive chains of decay...

2017GroetschHammerANDFeather
09 Sep 2017   Contributor(s):: Brian Winkel
Groetsch, C. W. 2017. Hammer and Feather: Some Calculus of Mass and Fall Time. Mathematics Magazine. 90: 37.The paper opens this way,“Does a heavy object fall faster than a lighter one? In 1971 NASA astronaut Dave Scott, Commander of the Apollo 15 lunar mission, used a hammer and a...

3009SBallDropInWater
16 Dec 2018   Contributor(s):: Brian Winkel
We conduct an analysis of a falling ball in liquid to determine its terminal velocity and to ascertain just what radius ball for a given mass density is necessary to attain a designated terminal velocity.

3013SWhiffleBallFall
30 May 2015   Contributor(s):: Brian Winkel
We are given data on the time and position of a whiffle ball as it falls to the ground. We attempt to model the falling ball and we confront the different resistance terms and models. Finally, we introduce a new way of comparing models, the Akaike Information Criterion, and apply it to our models.

3015SStyrofoamBallFall
24 Mar 2020   Contributor(s):: Brian Winkel
We are given data on a falling Styrofoam ball and we seek to model this motion.

3019SShuttlecockFall
30 May 2015   Contributor(s):: Brian Winkel
We are given data on the time and position of a shuttlecock as it falls to the ground from a set height. We attempt to model the falling object and we confront the different resistance terms and models. Finally, we introduce a new way of comparing models, the Akaike Information Criterion, and...

3065SUpDown
05 Oct 2016   Contributor(s):: Brian Winkel

3070SFallingInWater
04 Mar 2016   Contributor(s):: Brian Winkel
This is a study of modeling a falling object in liquid. We provide a video (in two versions  .mov and .mp4) which will enable you to collect data on a falling object in water to compare with your model and to estimate parameters using data you can collect from the video. VIDEO Version 1 ...

3075SRLCCircuit
17 May 2017   Contributor(s):: Brian Winkel
We introduce the basics of RLC circuits, defining the terms of inductance, resistance, and capacitance in a circuit in which an induced voltage created a current running through these devices.

Balloon Experiment in the Classroom
01 Mar 2017   Contributor(s):: Brian Winkel
Gruszka, T. 1994. A Balloon Experiment in the Classroom. The College Mathematics Journal. 25(5): 442444.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...

BeekenFirstOrderDifferentialEquationsAirResistance
26 Mar 2020   Contributor(s):: Brian Winkel
BeekenFirstOrderDifferentialEquationsAirResistanceBeeken, Paul. First Order Differential Equations as applied to Air Resistance. Byram Hills High School.This is a nice and gentle introduction to air resistance modeling.From the Introduction"The problem of air...

Calculus for Engineers IISample Problems on mathematical modeling with differential equations
10 Sep 2017   Contributor(s):: Brian Winkel
Calculus for Engineers IISample Problems on mathematical modeling with differential equations. https://www.maths.tcd.ie/~manuela/Sample_1.pdf . Accessed 10 September 2017.Five modeling activities involved with emptying various tanks, projectile motion with resistance, and population growth and...

Math Modeling with Differential Equations  Interesting Tank Problem
12 Sep 2017   Contributor(s):: Brian Winkel
Math Modeling with Differential Equations  Interesting Tank ProblemMath Modeling with Differential Equations  Interesting Tank Problem . Class Notes on five problems.,Several models are workd out including exponential decay, bullet traveling with resisitance, This material contains a solution...