We know that
• The length of the pool is 20 meters.
,• The time spent to swim the pool is 4 seconds.
,• The motion is constant.
Given that there's a constant motion, we can use the equation d = v*t, where d = 20m, and t = 4sec. Let's find the constant velocity.
[tex]\begin{gathered} d=vt \\ 20m=v\cdot4\sec \\ v=\frac{20m}{4\sec } \\ v=5\cdot\frac{m}{s} \end{gathered}[/tex]On the other hand, the equation of motion would be d = v*t because the motion has a null acceleration.
