Question

7. A train takes 2 h to reach station B from station A.
then 3 h to return from station B to station A. The
distance between the two stations is 200 km. Find
(i) the average speed, (ii) the average velocity of the trailer
​

Answer 1

(i) the average speed = 80km/hr

(ii) the average velocity of the train = 0

Step-by-step-explanation :

(i) average speed

let a = average speed, it took 5 hrs to travel 400 km.

a = 400/5

= 80 km/hr

(ii) average velocity of the train.

Velocity involves direction and displacement.

Since, it ended up in the same place it started (A); velocity is 0.