University Physics I · Static Equilibrium & Elasticity · 12.06
Ladders, hinges, and friction
Multiple contacts, impending slip, reaction components, and equilibrium limits.
Course-map guide · not a complete lesson or simulationScope & orientation
What this subsection covers
Multiple contacts, impending slip, reaction components, and equilibrium limits.A strong response uses load diagrams and states where the model stops being reliable.
Reasoning checklist
Evidence, assumptions and limits
Assumptions to state
State the system, observable, approximation, and conditions held fixed before using a model.
Evidence to collect
Over what stress range is a sample approximately Hookean, and where does lasting deformation begin?
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Over what stress range is a sample approximately Hookean, and where does lasting deformation begin? Useful evidence includes load-extension data converted to stress-strain, a fitted modulus, residuals, uncertainty, and a stated elastic range.
Limits to state
This GioPhysics course map is an adaptable teaching sequence, not a claim of accreditation or a universal university syllabus.
Read the complete note
This GioPhysics course map is an adaptable teaching sequence, not a claim of accreditation or a universal university syllabus. Departments can adjust the order, mathematical depth, laboratory hours, and optional fluids endpoint to match local requirements. A result should be checked against units, signs, limiting cases, and the conditions under which its model was derived.
Diagram & examples
Work the claim before choosing an equation
Interactive concept map
Follow the model from claim to evidence.
Multiple contacts, impending slip, reaction components, and equilibrium limits.
Model, evidence, and boundary
When should a model used for Ladders, hinges, and friction be revised?
Over what stress range is a sample approximately Hookean, and where does lasting deformation begin? Useful evidence includes load-extension data converted to stress-strain, a fitted modulus, residuals, uncertainty, and a stated elastic range.
modelModel, evidence, and boundary turns the stated idea into a representation that can make a prediction.
Example questions
Try the reasoning before revealing the structure.
When should a model used for Ladders, hinges, and friction be revised?
Quick check
Test the reasoning, not recall
When should a model used for Ladders, hinges, and friction be revised?
Choose an answer to test the model.