Hello!
We can calculate the average velocity by using the formula below:
![(s_2-s_1)/(t_2-t_1)](https://img.qammunity.org/2023/formulas/mathematics/college/nkvfbttjzgsvo3mhd6q0c32hdv8ii8avzb.png)
• S, is the distance in meters;
,
• T, is the time.
Knowing it, let's start with the alternatives:
1. [1, 3] Average Velocity: 4.5m/s
![(s_3-s_1)/(t_3-t_1)=(10.8-1.1)/(3-1)=(9.7)/(2)=4.85\text{ m/s}](https://img.qammunity.org/2023/formulas/mathematics/college/lnwj47ru27ldlrsxaag1wt9p4hjiq9zbut.png)
2. [2,3] Average Velocity: 5.3m/s
![(s_3-s_2)/(t_3-t_2)=(10.8-5.5)/(3-2)=(5.3)/(1)=5.3\text{ m/s}](https://img.qammunity.org/2023/formulas/mathematics/college/9fkqvplpcoysu680ll7wyz29ksaqyftgwb.png)
3. [3, 5] Average Velocity: 7.35m/s
![(s_5-s_3)/(t_5-t_3)=(25.5-10.8)/(5-3)=(14.7)/(2)=7.35\text{ m/s}](https://img.qammunity.org/2023/formulas/mathematics/college/dd3eu1lp9o0fhl107qek1yq6f2ejuh0ujf.png)
4. [3, 4] Average Velocity: 6.7m/s
![(s_4-s_3)/(t_4-t_3)=(17.5-10.8)/(4-3)=(6.7)/(1)=6.7\text{ m/s}](https://img.qammunity.org/2023/formulas/mathematics/college/uquigicaue97ua4e9slvmyzj2ka8rfvcf3.png)