a train travel 20 km at a uniform speed 60 km and the next 20 km at a uniform speed of 80 km h-1 calculate the average speed pls give me answer physics numerical I will marked brainlist and 30 follow and thanks
Answers
Answered by
1
Explanation:
Time taken to travel 20 km at 60km/hr, t₁-20/60=0.33hr
time taken to travel nxt 20 km at 80km/hr,
t2=20/80=0.25hr
total distance-40 km
total time=0.58 hr
avg speed-total distance travelled / total time taken=40/0.58-68.96km/hr
Answered by
1
Answer:
70 km per hrs is the average speed to cover distance of 40 km in 4/7 hrs
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