4-Rafal went to visit his grandmother in an aeroplane after covering a distance of 1440 km and he reached there in 2 hours.
a-How fast did the plane travel?
b-When the plane took off, it had to speed up. What is the scientific word for speeding up?
c-On its way, plane had to encounter the strong winds. What effect would they have on the speed of plane?
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Answer:
a) 720 km/h is the answer of a
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