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written by Scott Schneider
This Java Applet simulates the well-known "leaning ladder" physics problem. It consists of a ladder leaning against a wall and a person standing on the ladder (represented by a blue ball). The user can adjust mass of ladder, mass of person, distance person stands from base of ladder, coefficient of static friction underneath ladder, and the theta angle. Force vectors and values are shown for the lateral force and force of static friction on the base of the ladder. The ladder will fall if the lateral is greater than the frictional force.
Editor's Note: Physlets are designed using very simple graphics to convey focused concepts. In this case, the ladder is on a frictional surface and will stand in place if the applied force is less than the force of static friction. This simulation will help students build an understanding of factors affecting static equilibrium.
This is part of a larger collection of Physlet-based tutorials developed at Lawrence Technological University to support instruction of introductory physics.
Please note that this resource requires Java Applet Plug-in.
AAAS Benchmark Alignments (2008 Version)
4. The Physical Setting
11. Common Themes
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LTU Physlet: Ladder Leaning Against a Wall:
Is Part Of LTU: PHYSics appLETS (PHYSLETS)
A link to the full collection of LTU Java Physlets.relation by Caroline Hall
Same topic as Ejs TPT Ladder Demonstration Model
This related Physlet presents the concept of equilibrium with fewer components: it removes the person from the ladder. The only problem to be considered is the mean lean angle required to maintain static equilibrium.relation by Caroline Hall
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