Question

A train takes 2 hours to reach station B from station A and 3 hours to reach back to A. Stations A and B are separated by a distance of 400 km. What is the average speed and velocity of the train?

Answer 1

A train takes 2 hours to reach station b from station a,
and then 3 hours to return from station b to station a.
The distance between the stations is 400 km.
Find the (a) average speed
let a = average speed, it took 5 hrs to travel 800 km
a = 800/5
a = 160 km/hr
:
(b) average velocity of the train.
Velocity involves direction and displacement
Since it ended up in the same place it started (A); velocity is 0