What is the primary purpose of a boat's anchor?

The primary purpose of a boat's anchor is to prevent drifting. Anchors function by securing a vessel in place in the water, holding it steady against the forces of wind and current. When deployed correctly, an anchor digs into the seabed, providing the necessary resistance that allows the boat to remain in a fixed position. This is particularly important during fishing, overnight stays, or when a boat simply needs to remain stationary.

In contrast, using an anchor for increasing speed does not align with its intended function, as an anchor is designed for stability, not propulsion. While it can assist in docking by keeping a boat steady as the crew maneuvers, its main role is to prevent unwanted movement. The idea of a boat carrying extra weight does not accurately capture the anchor's purpose, as the weight of the anchor is simply a means to achieve its primary function of securing the boat in place.