Here is my question,
A car travels half the distence with a constant velocity of 30km/hr and another half with a constant velocity 40km/hr along a stright line calculate the average velocity.
Please do answer as soon as possible
Thanks a lot
Let, S be the total distance travelled.
It travels S/2 with velocity 30km/hr . Time taken is, t 1 = S/(2 x 30) =S/60 hr
It travels next S/2 with velocity 40km/hr . Time taken is, t 2 = S/(2 x 40 ) =S/80 hr
So, average velocity is, v av
