The change, t, in a runner's performance is modeled by:
[tex]t=0.0119s^2-0.308s-0.0003[/tex]Here s is the tall-wind speed.
It's required to find the change in a runner's finishing time with a wind speed of s = 5 m/s.
Substitute in the equation:
[tex]t=0.0119(5)^2-0.308(5)-0.0003[/tex]Operating:
[tex]\begin{gathered} t=0.0119(25)-1.44-0.0003 \\ \\ t=0.2975-1.44-0.0003 \end{gathered}[/tex]Calculating:
t = -1.24
