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2 cards from this section. Quick, good the night before a test.
Define static determinacy.
Consider how many unknowns and equations are in a system.
What is a free-body diagram?
Think about what you need to include in your drawings when analyzing forces.
What does static determinacy allow us to do in frame analysis?
Which concept connects with equilibrium equations?
True or false: A frame is statically indeterminate if the number of equations is less than the number of unknowns.
Think about the relationship between unknowns and equations.
Given a cantilever beam with a point load at its free end, derive the shear and bending moment equations along the beam.
What are the effects of the load at the free end on the reactions?
Analyze a bridge truss loaded with several members and loads, identify which members are in tension or compression.
Start with joints where results yield the least unknowns.
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