You are preparing for what promises to be a...

Question 1 / 2066636ef128f7522a1c521d17

Question 1 of 2066636ef128f7522a1c521d17

You are preparing for what promises to be a rough ocean passage. Your 120-foot schooner carries a yard on the foremast, about 50 feet above the water. The yard weighs about 1000 pounds. What will be the consequence if you take the yard down and stow it on deck for the trip?

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Question 1 of 20

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🔍 Key Concepts

• Center of gravity (G) and how weight shifts affect it • Relationship between metacentric height (GM) and vessel stability/rolling period • Difference between initial stability (GM) and reserve buoyancy

💭 Think About

• Visualize what happens to the ship’s overall center of gravity when you move a 1000-pound weight from 50 feet above the waterline down to deck level. Does G move up or down? • Recall how a larger or smaller GM affects the character of the roll: does a high GM make the ship snap back quickly or roll more gently? • Think about what reserve buoyancy actually means. Does moving weight around change the volume of watertight hull above the waterline?

✅ Before You Answer

• Before choosing, decide clearly whether moving the yard up or down will raise or lower the ship’s center of gravity. • Review the rule of thumb: large GM vs. small GM – which one is associated with a quick, stiff roll and which with a slow, easy roll? • Confirm whether reserve buoyancy is affected by weight distribution or by the ship’s hull form and intact spaces above the waterline.

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Question 1 of 20

This action will decrease the metacentric height

This action will increase your vessel's GM

This action will give the vessel a gentler roll

This action will increase the reserve buoyancy

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Question 1 / 2066636ef128f7522a1c521d17

Question 1 of 2066636ef128f7522a1c521d17

Back

Question 1 of 20

66636ef128f7522a1c521d17

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Be the first to share your thoughts!

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🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed