Question

a train moves at a constant speed of 40 kilometre per hour for one kilometre at a constant speed of 50 kilometre per hour for next to kilometres what is average speed of a train ​

Answer 1

Answer:

$initial \: velocity \: (u) = 40km {h}^{ - 1} \\ final \: velocity \: (v) \: = 50km {h}^{ - 1} \\ average \: speed \: = \frac{40 + 50}{2} \\ = \frac{90}{2} = 45km {h}^{ - 1} \\ mark \: me \: as \: brainliest$