Rocking Semicircular Hoop Model
written by Wolfgang Christian
The Rocking Semicircular Hoop model shows the dynamics of a simple object rocking without slipping on a horizontal surface. It is a supplemental simulation for an article by Leaf Turner and Ari Turner in the American Journal of Physics (AJP).
The object, a semicircular hoop with radius R, is acted on by gravitational, frictional, and normal forces. Although the system executes simple harmonic motion at small angles, its large angle oscillations are nonlinear. The angular acceleration for the semicircular hoop can be derived through Lagrangian dynamics or by computing the torque about the point of contact. The paper by Turner and Turner derives the equation of motion from an analysis of the torque and the Rocking Semicircular Hoop model displays the numerical solution and shows how the forces and torques evolve in time.
Please note that this resource requires at least version 1.5 of Java.
1 source code document is available
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Rocking Semicircular Hoop Model:
Is Based On Easy Java Simulations Modeling and Authoring Tool
The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Rocking Semicircular Hoop Model.relation by Wolfgang Christian
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