a car moving from A to B with a constant speed of 60km/hr and returns back to its initial point with the constant speed of 40km/hr find the average speed of the car for its complete journey.
Answers
Answered by
0
Answer:
car moving from A to B with a constant speed of 60km/hr and returns back to its initial point with the constant speed of 40km/hr find the average speed of the car for its complete journey
Answer:50km/hr
Answered by
1
Explanation:
average speed = total length / total time
if x= distance AB in km then the two times to add are
Tab= x/60 and Tba= x/40
AvSpeed= 2*x/(x/60+x/40) = 2*40*60/(60+40) = 48km/hr
Similar questions