You are driving an old truck along a straight road for 10 km at 70 kph. At this point, you run out of gas. You walk 2 km farther to the nearest gas station fro 30 min. What is your average velocity from the time you started your truck to the time you arrived at the station
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Answer:
time 1=10/70=1/7 h
time 2=1/2 h
whole distance=12
Explanation:
12km/(9/14)h=56÷3 kmh-1
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