Answer:
5 m/s²
Step-by-step explanation:
Use the acceleration formula:
![a=(v_f-v_i)/(t)](https://img.qammunity.org/2022/formulas/physics/high-school/twzcp441gsb3a29bfrjn90r8lug2srmixx.png)
- vf = final velocity (m/s)
- vi = initial velocity (m/s)
Based on the information given to us by the prompt, we know:
Substitute these values for the variables to calculate the acceleration:
![a=(30-10)/(4)\\\\a=(20)/(4)\\\\a=5](https://img.qammunity.org/2022/formulas/physics/high-school/7mm5jmfa6xt7nzzxymn9m4htu47gno9gpr.png)
Therefore, the acceleration of the bus is 5 m/s².