The train reaches a speed of 15 meters per second in 40 seconds after leaving the station, what is its acceleration?

These tasks: V (the speed reached by the train under consideration) = 15 m / s; t (time elapsed after the train left the station) = 40 s.

We express the acceleration of the train under consideration from the formula: V = V0 + a * t = 0 + a * t and a = V / t.

Let’s calculate: a = 15/40 = 0.375 m / s2.

Answer: The train in question was supposed to move with an acceleration of 0.375 m / s2.