A car travels a distance A to B at the speed of 40km/h and returns to A at a speed of 30km/h.
1)What is the average speed of the whole journey?
2) What is the average velocity?
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100 km / 40 kph = 2.5 hr. This is leg 1, or A. 100 km / 60 kph = 1.6667 hr. This is keg 2, or B. Now we can average speed between the two legs. Average is the mean between the ...
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