The motion of a vessel impacts its stability. Which of these motions shown in the illustration affects the governing "longitudinal" stability? Illustration SF-0048

Correct Answer: Option B — Pitch

Pitch is the rotational motion of a vessel about its transverse axis, causing the bow and stern to rise and fall. This motion is the primary factor governing longitudinal stability, as it directly influences the vessel's trim and the distribution of buoyancy along the length of the hull.