A car moves 30 km in 0.5 h and the next 30 km in 2/3 h. Calculate the average speed for the entire trip.
Answers
Answered by
33
Step-by-step explanation:
T1 = 0.5h = 30min
T2 = 2/3h = 40min
In first Case,
Distance = 30km
Time = 30min
Speed, V1 = 1km/h
In second case,
Distance = 30km
Time = 40min
Speed, V2 = 0.75km/h
Since distance in both cases is same,
av speed = 2V1V2 / V1+V2
= 2×1×0.75 / 1+0.75
= 1.5 / 1.75
= 0.8571 km/min
= 51.42 km/h
Hope it helps!
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Answered by
7
Step-by-step explanation:
total distance =60 km
total time =7 ÷ 6hours
average speed = 60 ÷7÷6
= 60×7÷6
= 10×7
=70 kmph
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