A train starting from a railway station and moving with uniform acceleration attains a speed 40 km h–1 in 10 minutes. Find its acceleration.

Here we have,
Initial velocity, u = 0 m/s
Final velocity, v = 40 km/h = 40×1000/3600 ms⁻¹=100/9 ms⁻¹
Time (t) = 10 minute = 60 × 10 = 600 s
Acceleration (a) =?
We know that, v = u + at
⇒𝑎=𝑣−𝑢/𝑡=(100/9−0)600=1/54=0.0185 ms⁻²
⇒ a = 0.0185 ms⁻²

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