Answer:
The acceleration of the train is 5 m/s².
Explanation:
Acceleration is the change in velocity over a given time interval.
Therefore, acceleration is given as:
[tex]a=\frac{v_{f}-v_{i}}{\Delta t}[/tex]
Where, [tex]v_{i}\textrm{ and }v_{f}[/tex] are initial and final velocities and [tex]\Delta t[/tex] is the time interval.
Here, [tex]v_{i}=5\textrm{ m/s},v_{f}=45\textrm{ m/s},\Delta t=8\textrm{ s}[/tex]
This gives,
[tex]a=\frac{45-5}{8}=\frac{40}{8}=5\textrm{ }m/s^{2}[/tex]
Therefore, the acceleration of the train is 5 m/s².
