Question

a train starting from rest attains a velocity of 20 m/s in 2 minutes.assuming that the acceleration in uniform find.the acceleration

Answer 1

The train starts from rest so,
initial velocity= 0 m/s
final velocity= 20 m/s

Total time taken to reach the final velocity= 2min = 120 sec

Acceleration= $\frac{Change in velocity}{Time taken}$
                    =$\frac{20-0}{120}$
                    =0.166666 m/s²