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2 cards from this section. Quick, good the night before a test.
Define traction in your own words.
Think about the role of forces at material boundaries.
What is torque?
Consider how force affects rotation.
What are traction forces?
Think about how forces act at the boundaries of materials.
Is torque solely dependent on surface forces?
Recall the definitions of body forces and surface traction.
A cuboidal object sits in a fluid. A uniform traction force acts on one face. Derive the torque about the centroid considering the boundaries.
Use the properties of cross products to analyze the forces.
Evaluate how dynamic terms change the balance of angular momentum when a body accelerates with a time-varying force applied.
Remember how changes in acceleration affect forces in equilibrium.
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