Which of the following describes the relationship between dynamics and kinematics?

The correct choice highlights the fundamental distinction between kinematics and dynamics in the study of motion. Kinematics is the branch of mechanics that focuses on describing the motion of objects without considering the forces that cause that motion. It deals with parameters such as displacement, velocity, and acceleration, providing a framework to analyze how objects move.

On the other hand, dynamics goes a step further by incorporating the forces and torques that produce motion. It examines how these forces affect the motion of objects, emphasizing the relationship dictated by Newton's laws of motion. Therefore, while kinematics provides insight into how objects move, dynamics explains why they move that way by linking the motion to the forces involved.

This distinction is crucial in engineering and physics, as it allows for a clear separation of the description of motion from the analysis of forces, which is foundational in understanding both static and dynamic systems. The other options misrepresent this relationship by incorrectly attributing the characteristics of one branch of mechanics to another, thus highlighting why they do not accurately capture the essence of kinematics and dynamics.