Straight-line motion: Uniformly accelerated motion demonstration

This example demonstrates the basic graph and phenomenon of uniformly accelerated straight-line motion. The key mathematical concepts involved include velocity, acceleration, and the formulas for uniformly accelerated motion. Construction points include using GeoGebra commands such as Intersect, Point, Vector, OrthogonalLine to construct motion trajectories and related geometric objects. Suitable for middle or high school mathematics learning, used to understand the relationship between straight-line motion and function graphs.