A body covers a total distance of `3s`. The first `s` is covered with a velocity `u` the second `s` with `V` and the last `s` with `omega`. Then, the average velocity during the whole journey is

Options

A. `(u+v+omega)/3`
B. `(3uvomega)/(u+v+omega)`
C. `(3uvomega)/(uv+vomega+uomega)`
D. zero

Explanation

(c) Avery velocity `v_(av)=("Total distance")/(Total time")`
`impliesv_(av)=(s+s+s)/(s/u+s/v+s/(omega))impliesv_(av)=(3uv omega)/(uv+vomega+uomega)`