This resource is a simulation-based activity relating to tension force and motion with constant acceleration. It displays a block sitting on a table, attached by string to a block hanging off the side. The string is guided over a pulley. The user can control the mass of the blocks and mass of the pulley, view data giving real-time values of speed and time, and view a changing free-body diagram through the cycle of motion. A comprehensive "Help" section provides step-by-step directions for use and detailed lessons for both beginning and intermediate instructional settings.
This item is part of a larger collection of simulation-based physics modules sponsored by the MAP project (Modular Approach to Physics).
<a href="https://www.compadre.org/introphys/items/detail.cfm?ID=7130">University of Calgary. Modular Approach to Physics: Fletcher's Trolley. Calgary: University of Calgary, October 3, 2003.</a>
Modular Approach to Physics: Fletcher's Trolley. (2003, October 3). Retrieved December 9, 2025, from University of Calgary: http://canu.ucalgary.ca/map/content/energy/energy_cons/simulate/fletcher/applet.html
University of Calgary. Modular Approach to Physics: Fletcher's Trolley. Calgary: University of Calgary, October 3, 2003. http://canu.ucalgary.ca/map/content/energy/energy_cons/simulate/fletcher/applet.html (accessed 9 December 2025).
%0 Electronic Source %D October 3, 2003 %T Modular Approach to Physics: Fletcher's Trolley %I University of Calgary %V 2025 %N 9 December 2025 %8 October 3, 2003 %9 application/java %U http://canu.ucalgary.ca/map/content/energy/energy_cons/simulate/fletcher/applet.html
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