And since acceleration is a change in velocity, I'd have to go with: Both.
If a soaring eagle changes direction but remains at a constant speed, the only property that would be affected is velocity. Velocity is a vector quantity that includes both the magnitude (speed) and direction of an object's motion. Therefore, if the eagle changes direction, the velocity vector would change. However, since the eagle is still maintaining a steady speed, there would be no change in acceleration. Acceleration, on the other hand, is a measure of how an object's velocity changes over time. Since the eagle's speed is constant, there would be no change in acceleration. In summary, if a soaring eagle changes direction but keeps a constant speed, only the velocity would be affected.
