Velocity - Uniform Motion
The average velocity (V) of a ball is equal to displacement divided by a time elapsed.
Average velocity = distance traveled/ time elapsed
Example: V = s /t = 50.0 (m) / 2.0 (s) = 25 m/s
This value means that in each second, the ball moves 25.0 m.
In the uniform motion the magnitude of velocity is the same in any instant or time interval, but the direction can change. In the uniform motion in a straight line, the magnitude and direction are the same in any instant or time interval (fig.1).
Figure 1 - A ball in uniform motion in a straight line. he figure 1 shows that:
V = s /t = 25,0/1,0 = 50,0 / 2,0 = 75,0 / 3,0 = 100,0 / 4,0 = 25,0 m/s