Question

a body travels half the distance with speed of 20 m/s and the other half with speed of 30m/s.Thee average velocity of the body during whole journey is​

Answer 1

Answer:

I think it's 24m/s...

Explanation:

let half the distance be x

total distance= x+x=2x

first time interval=x/20 s

second time interval=x/30 s

av velocity= total distance/ total time

= 2x/x/20+x/30

simplify and you'll get 24m/ s