Question

A body goes from A to B with a velocity of 20 m/s and comes back from B to A with a velocity of 30 m/s. The average velocity of the body during the hole journey is

Answer 1

Answer: please see the photo

Answer 2

Answer: 25m/s

Explanation:

Average velocity=

[v1+ v2+v3+.....vn]/Number of terms

so,

20+30/2= 25m/s