A car travels first 30km with a uniform speed 60om/h and then next 30km with uniform speed of 40km/h calculate total to me of the journey and average speed.
Answers
Answered by
5
Answer:
total time =1hr. 15min.
average Speed=48kh/hr
Explanation:
time T1 to travel first 30km=distance/time
=30/60=1/2hr
time T2 to travel next 30km=
30/40= 3/4hr
total time of journey=T1+T2=
(1/2)+(3/4)= 5/4hr.
that is = 1hr.15min.
average speed=total distance/total time
=60/(5/4)=48km/hr
Similar questions