1J30.10 - Resolution of Forces on an Inclined Plane
Set the block on the inclined plane. Attach the strings over the pulleys and set the pulleys to the proper angle. Attach the weights until the block barely touches the incline plane. When ready to show the demo remove the incline plane and block should stay in position.
This demo is easy to do if you set the incline at a 30 degree angle. Then you basically have a 3:4:5 triangle, and the balancing forces are easy to calculate. For instance, if you use a 1500g block, the perpendicular force would be 1200g, and the parallel force would be 900g.
- Irany Vera Manrique, Gabriela Rivadeneyra Gutiérrez, and David Alejandro Martínez González, "Kinetic Friction: Time Upward and Downward", TPT, Vol. 57, #3, Mar. 2019, p. 142.
- Jerome C. Licini, "A Tilted-Axes Tool for Introductory Mechanics and Mathematics Courses", TPT, Vol. 56, #8, Nov. 2018, p. 528.
- Debora M. Katz, "Hanging an Airplane: A Case Study in Static Equilibrium", TPT, Vol. 47, #8, Nov. 2009, p. 516.
- Edward P. Wyrembeck, "Inductively Modeling Parallel, Normal, and Frictional Forces", TPT, Vol. 43, #2, Feb. 2005, p. 107.
- Lou Turner, "System Schemas", TPT, Vol. 41, #7, Oct. 2003, p. 404.
- Ronald Newburgh, "Force Diagrams: How? and Why?", TPT, Vol. 32, #6, Sept. 1994, p. 352.
- Brian Lane, "Why Can't Physicists Draw FBD's?", TPT, Vol. 31, #4, Apr. 1993, p. 216.
- Louis G. Mathot, "Free-Body Diagrams", TPT, Vol. 31, #7, Oct. 1993, p. 390.
- Brian Lane, "Response to Mathot", TPT, Vol. 31, #7, Oct. 1993, p. 390.
- Mj- 2: Freier and Anderson, A Demonstration Handbook for Physics.
- M- 272: "Cart on Inclined Plane", DICK and RAE Physics Demo Notebook.
- Tik Liem, "Which One is Heavier?", Investigation to Science Inquiry, p. 358.
- Jonathan Mitschele and Matthew Muscato, Edited by Karl Mamola, "Demonstrating Normal Forces with an Electronic Balance", Apparatus for Teaching Physics, p. 31.
- Cenco, "Coefficient of Friction", Selective Experiments in Physics.
- Joseph Frick, "# 53 - The Inclined Plane", Physical Technics: Or, Practical Instructions for Making Experiments in Physics and the Construction of Physical Apparatus with the Most Limited Means, p. 62.
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