Atrain starting from a station is uniformly gaining speed until after 5 minutes it acquires the maximum uniform speed of 80km/hr. find the average velocity and the diatance travelled during variable state of motion?

i think it's about 10 mins.

actually i think that's wrong, but i don't know how to delete this.

but who knows it might be right.

whats the question if no question pls tell me

violins play the melody in this section of sergei prokofiev's peter and the wolf.

hope this !