. A vessel intends to travel at a course due South. The movement of the sea current is from SE. At what course must the vessel stir?

To counteract the movement of the sea current from the southeast, the vessel must steer slightly west of due South. This would allow the vessel to maintain a course as close to due South as possible despite the influence of the current. The exact course to steer would depend on the speed and strength of the sea current.

To determine the course at which the vessel should steer, we need to take into account the direction of the sea current, which is from the Southeast (SE), and the vessel's intended direction of travel, which is due South.

Here's how you can calculate the course for the vessel to steer:

1. Visualize the directions: Draw a compass rose with the directions labeled. Place the vessel's intended direction of travel, due South, at the bottom (180 degrees).

2. Determine the angle between the current and the vessel's intended course: In this case, the current is from the Southeast, which is approximately 135 degrees on a compass. Calculate the difference between the intended course (180 degrees) and the current's direction (135 degrees). In this case, it is a difference of 45 degrees.

3. Modify the vessel's course: To counteract the effect of the current, the vessel needs to steer to compensate for it. Since the current comes from the right (starboard) side, the vessel needs to steer slightly to the left. Add the calculated difference (45 degrees) to the vessel's intended course (180 degrees). The resulting course for the vessel to stir is approximately 225 degrees.

Therefore, the vessel should stir at a course of approximately 225 degrees to counteract the southeast sea current and maintain its intended direction of travel due South.

To determine the course the vessel must steer, we need to consider the effect of the sea current. Since the vessel intends to travel due South, and the sea current is from the SE (southeast), the sea current will push the vessel to the northwest.

To counteract the drift caused by the sea current, the vessel must steer slightly to the right of the intended course, compensating for the effect of the current.

In this case, since the sea current is coming from the southeast, the vessel should steer a course slightly to the right of due South, approximately towards the southwest. This will allow the vessel to counteract the drift caused by the current and maintain a southerly heading.