Question

First half of the distance is covered by a car with
velocity x and the second half is covered with
velocity y. What is the average velocity of the car?
1). Xy/x+y
2). x+y/2
3). 2xy/x+y
4). xy/2(x+y) ​

Answer 1

Explanation:

average velocity = total distance / total time

= D / t¹ + t²

= D / ( D/2x + D / 2y)

= 2 xy /(x+y)

option 3.