The term that defines how fast something is going along with its direction is "Velocity." Therefore, the correct answer to this question is the third option.
Let's briefly go over the terms listed to understand why velocity is the correct answer:
1. Area: This is a measure of the extent of a two-dimensional surface within a boundary. It does not pertain to speed or direction.
2. Angle: This refers to the figure formed by two rays, called the sides of the angle, sharing a common endpoint, known as the vertex of the angle. It is a measure of rotation and not related to speed or direction in the context of movement.
3. **Velocity**: This is a vector quantity that denotes the rate of change of position of an object. It is defined as the distance covered per unit time in a given direction. Thus, it perfectly fits the definition of how fast something is going along with its direction.
4. Acceleration: This is the rate at which an object's velocity changes with time. While it is related to velocity, it specifically concerns changes in velocity, not the velocity itself.
Given the definitions above, it is clear that the correct answer is "Velocity," which corresponds to the third option in the list provided.
