Question

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

Answer 1

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 = 0.0185 ms ⁻²