$$x = x_0 + vt$$
$$x_f=x_i \pm vt,\text{ and}$$
$$v=\frac{\Delta x }{\Delta t}$$
where:
* $x$ is the position of the object at time $t$
* $x_0$ is the initial position of the object
* $v$ is the velocity of the object
* $t$ is the time elapsed
These equations can be used to describe the motion of any object that is moving in a straight line with constant velocity.
* If you know the initial position and velocity of an object, you can use the first equation to determine its position at any later time.
* If you know the initial position of an object and its position at a later time, you can use the second equation to determine its velocity.
* If you know the distance traveled by an object and the time it took to travel that distance, you can use the third equation to determine its velocity.
