ANSWER
9.80 m/s
EXPLANATION
We want to find the speed in meters per seconds.
Speed is given as:
[tex]s=\frac{\text{distance}}{\text{time}}[/tex]So, we simply have to divide the distance by time.
Therefore, the speed is:
[tex]\begin{gathered} s=\frac{100}{10.2} \\ s=9.80\text{ m/s} \end{gathered}[/tex]That is the speed.