Question

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

Answer 1

acceleration
$\frac{v - u}{t} \: = \frac{40 - 0}{10 \div 60} = 240 \frac{km}{ {hr}^{2} }$
v= final speed =40 km/hr
u= initial speed= 0 km/hr because the train stats from rest.
time= 10 min = 10/60 hour

Answer 2

Here is your answer