The EJS Angular Acceleration of a Contracting System model shows a mass and pulley system to illustrate what happens when a rotating system contracts. When the centripetal force has contracted a rotating system to half its initial radius then: (1) The tangential velocity has doubled, (2) The angular velocity is 4 times faster, (3) The rotational kinetic energy is 4 times higher. (4) The required centripetal force is 8 times stronger.
You can examine and modify this simulation if you have EJS installed by right-clicking within the plot and selecting "Open EJS Model" from the pop-up menu item.
The Angular Acceleration of a Contracting System model was created using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_nl_teunissen_angular_acceleration.jar file will run the program if Java is installed.
Additional information about this model can be found by visiting the author's web site: http://www.cleonis.nl/index.htm.
Please note that this resource requires
at least version 1.5 of
Angular acceleration of a Contracting System Source Code
The source code zip archive contains an XML representation of the Angular acceleration of a Contracting System model. Unzip this archive in your Ejs… more... download 18kb .zip
Last Modified: November 3, 2009
Teunissen, C. (2009). Angular acceleration of a Contracting System Model (Version 1.0) [Computer software]. Retrieved April 23, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9608&DocID=1391
%0 Computer Program %A Teunissen, Cleon %D January 19, 2009 %T Angular acceleration of a Contracting System Model %7 1.0 %8 January 19, 2009 %U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=9608&DocID=1391
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