18.1.2 - Unstable Equilibrium
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Practice Questions
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What is stable equilibrium?
💡 Hint: Think about objects that can easily right themselves.
Give an example of unstable equilibrium.
💡 Hint: Consider how easily it can be knocked over.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What happens to a system in unstable equilibrium when disturbed?
💡 Hint: Consider how easily disturbed objects behave.
True or False: A marble on a flat surface is an example of stable equilibrium.
💡 Hint: Think about what happens when you push it.
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Challenge Problems
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Derive the moment equation for a rigid bar connected to a spring at different angles. Discuss how this affects stability.
💡 Hint: Use trigonometric identities to facilitate your derivation.
Assess a scenario where an engineered structure falls due to unstable equilibrium. What could have been done to prevent it?
💡 Hint: Reflect on real-world examples of structural failures.
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