Question

A car travels half the distance with constanst velocity 40km/hr. What is the average velocity of the car?​

Answer 1

Answer:

48km/hr

Explanation:

let x be the distance travelled by the car..x/2 be half the distance now time t taken by the car with a velocity 40km/hr is x/80hr (time=distance/speed) time t taken by the car with a velocity 60km/hr is x/120 hr. 

now avg velocity= x/2+x/2

                           x/80+x/120

                          = x*9600

                                200x

                           = 48km/hr 

Answer 2

Answer:

Explanation:

40km/2 =20km/hr