🔍 Key Concepts

• Center of gravity (G) and how it shifts when weight is added or removed • Effect of adding weight low in the vessel (near the keel) versus high in the vessel (on the mast or upper decks) • Relationship between keel, center of gravity, metacenter, and center of flotation

💭 Think About

• When you add a weight low in the ship (at or near the keel), in which vertical direction should the overall center of gravity shift? • Which of the options mention points (like metacenter or center of flotation) that typically do NOT coincide with the center of gravity just because weight is added? • Think about stability: does adding weight at the keel generally make the ship more or less stable, and what does that imply for the height of the center of gravity?

✅ Before You Answer

• Be clear on where the keel is located vertically in the ship (very low, near the bottom) • Recall that the center of gravity moves toward added weight and away from removed weight • Verify that the metacenter (M) and center of flotation (F) are distinct stability points and normally do not become the same point as the center of gravity just from adding weight at the keel