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Ejs TPT Ladder Demonstration Model
written by Mario Belloni
This model displays the statics and dynamics of a ladder leaning against a wall. The standard (textbook) statement of this problem assumes that there is no frictional force between the wall and the ladder, but a frictional force between the ground and the ladder. In the simulation, students set the initial lean angle and the coefficients of static and kinetic friction between the floor and the ladder. This resource includes background information and related problems.
Editor's Note: In teaching about equilibrium, instructors may want to use "bite-size" pieces to slowly build concepts. This simulation presents the concept with very simple graphics, appropriate for the introductory class. See Related Materials for a more complex simulation that introduces a person standing on the ladder.
This item was created with Easy Java Simulations (EJS), a modeling tool that allows users without formal programming experience to generate computer models and simulations. To run the simulation, simply click the Java Archive file below. To modify or customize the model, see related materials for installing and running the EJS Modeling and Authoring Tool.
Please note that this resource requires at least version 1.5 of Java (JRE).
View the source code document attached to this resource
AAAS Benchmark Alignments (2008 Version)
4. The Physical Setting
11. Common Themes
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Ejs TPT Ladder Demonstration Model:
Same topic as LTU Physlet: Ladder Leaning Against a Wall
This is a related, but somewhat more complex Physlet which introduces an additional force: a person standing on the leaning ladder.relation by Caroline Hall
Is Based On Easy Java Simulations Modeling and Authoring Tool
A link to the free Easy Java Simulations Modeling and Authoring tool, which is needed to modify the computational model used in the Ladder Demonstration model.relation by Caroline Hall
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