The full name of s is "stretch", which means distance, straight track, stretch! Because distance represents distance, it is abbreviated as "d". To distinguish it, use s to represent the distance. v is velocity, meaning speed.

S=V·t means that when an object moves in a straight line at a uniform speed, the distance is equal to the speed times the time.

According to the physical knowledge s=v·t, this is a physical formula, which represents a relational expression of an object in a state of uniform linear motion. s represents the distance, and the standard unit is m; v represents the speed. , the standard unit is m/s; t represents time, the standard unit is s, and the entire formula represents the distance traveled by the object at its own speed per unit time.

The ratio of the displacement of an object to the time it takes:

It is called the average speed (regardless of any form of movement). It is the ratio of the displacement of an object to the time interval for this displacement to occur. The velocity formula v=s/Δt can only roughly reflect the speed of a variable-speed moving object. It is a rough description of the movement of an object.

In uniform linear motion, the average speed is equal to the instantaneous speed.

In uniformly accelerated linear motion, the average velocity is equal to the average of the initial velocity and the final velocity, and is also equal to the instantaneous velocity at the intermediate moment.