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Buoyancy and Floatation MCQs
A completely submerged body will be stable if ____
11. A completely submerged body will be stable if ____.
- Its density is lower than that of the fluid
- Its center of gravity is lower than its center of buoyancy
- Its center of gravity is above its center of buoyancy
- Its weight is greater than the buoyant force
Answer: B) Its center of gravity is lower than its center of buoyancy.
Explanation:
A completely submerged body's center of gravity must be lower than its center of buoyancy in order for it to remain stable. This ensures that any small disturbance will result in a restoring torque that brings the body back to its original position.