The original equilibrium position is stable...

The original equilibrium position is stable...

Question 1 of 2707066636eec28f7522a1c51c967

The original equilibrium position is stable when __________.

Question 1 of 27070

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Study area:

Q

The original equilibrium position is stable when __________.

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🔍 Key Concepts

• Initial stability and what it means for a vessel at small angles of heel • Relationship between G (center of gravity), B (center of buoyancy), and M (metacenter) • Effect of free surface and high KG (height of center of gravity above keel) on stability

💭 Think About

• When a ship is heeled slightly, what must happen to the righting lever (GZ) for the equilibrium to be considered stable? • How does the position of M relative to G affect whether a small heel will create a righting moment or a capsizing moment? • Which of the answer choices would clearly worsen stability rather than improve it?

✅ Before You Answer

• Recall that stable equilibrium means a small disturbance creates a restoring (righting) moment, not an overturning moment. • Think about whether a high KG and excessive free surfaces generally increase or decrease stability. • Verify which term (metacentric height vs metacentric radius) is directly used as the standard criterion for initial stability at small angles.