🔍 Key Concepts

• Center of gravity (G) and what it represents on a ship • How moments are calculated (weight × distance) and then combined • What you get when you divide a total moment by a total weight in basic statics

💭 Think About

• Think about what physical point on the ship is located by taking all the small weights and their distances, adding up their moments, and then dividing by the total weight. • Which of the answer choices describes a location or height, and which describe forces or turning effects? • In simple physics, when you have several weights at different heights, what does the sum of (weight × height) divided by total weight give you?

✅ Before You Answer

• Identify which answer choice refers to a point or height rather than a type of moment. • Recall that a moment is already the product of weight and distance; ask yourself what happens when you divide that by weight. • Make sure you are not confusing righting/inclining moments (which are rotational effects) with a geometric/positional property of the vessel.