What effect does adding weight to a vessel have on its stability?

Adding weight to a vessel can significantly influence its stability by affecting the center of gravity. When weight is added, depending on its placement, it can potentially lower the center of gravity of the vessel, which generally enhances stability. A lower center of gravity means that the vessel is less likely to tip over, as the center of buoyancy can shift to provide greater counteracting force against heeling.

However, if the added weight is not evenly distributed, it can create an unbalanced effect, which may ultimately reduce stability or increase the likelihood of capsizing. Therefore, the impact of adding weight is conditional; it can enhance stability when it leads to a lower center of gravity and is properly distributed. Conversely, if not carefully managed, it could lead to a detrimental effect on the vessel's stability.

This explanation highlights the nuanced relationship between weight distribution and stability, illustrating why the chosen answer correctly encompasses the complex nature of the effects that added weight can have on a vessel’s stability.