Until a train is a safe distance from the station, it must travel at 5 m/s. once the train is on open track, it can speed up
to 45 m/s. if it takes a train 8 seconds to reach 45 m/s, what is the acceleration of the train?
m/s4

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:

Where, are initial and final velocities and is the time interval.

Here,

This gives,

Therefore, the acceleration of the train is 5 m/s².