Answer :
[tex]\begin{gathered} \text{For Jessica} \\ m=\text{ 40.0 }kg \\ r=8.0\text{ m} \\ v_{Jessica}=1.3\text{ m/s} \\ F_{Jessica}=\frac{mv^2_{Jessica}}{r}=\frac{(\text{ 40.0 }kg)(1.3\text{ m/s})^2}{8.0\text{ m}} \\ F_{Jessica}=8.45N \\ \\ \text{For Julie} \\ m=\text{ 40.0 }kg \\ r=6.0\text{ m} \\ v_{Julie}=0.95\text{ m/s} \\ F_{Julie}=\frac{mv^2_{\text{Julie}}}{r}=\frac{(\text{ 40.0 }kg)(0.95\text{ m/s})^2}{6.0\text{ m}} \\ F_{Julie}=6.01\text{ N} \\ \\ \text{Jessica is experiencing the greatest force of }8.45N \end{gathered}[/tex]