🔍 Key Concepts

• Longitudinal Center of Gravity (LCG) is found from total longitudinal moment and total weight • A moment is a weight multiplied by its distance from a reference point • Think about how you solve for a center or average position using moments and total quantity (like weighted averages)

💭 Think About

• If each item’s moment is its weight times its distance, what operation should you do with ALL the moments and ALL the weights to find a single central distance? • When you calculate a weighted average position, do you add, subtract, multiply, or divide by the total weight? • Which of these choices matches the standard formula used for centers of gravity in both ship stability and basic physics?

✅ Before You Answer

• Recall the basic formula: Center of gravity = (sum of moments) ? (sum of weights) • Check which operation would give a result with units of distance, not weight or moment • Eliminate any options that would make LCG larger and larger with increasing weight instead of giving a balanced central position