The people traveling west came from the east
They don't - you're traveling west to east.
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westerly
find the resultant of the following displacement a=20km 30south of east
if you are traveling north, the direction to the right would be east. north west east south
West
The displacement of the person pacing back and forth travels 5 west 7m west is usually East.
The final displacement would be 3 km east of the starting point.
It seems that I get about 3 miles more per gallon traveling west to east, than the transverse. Any facts to verify? No, this is simply a myth. There is no difference at all unless you happen to be going up a hill when traveling east.
west to east
You don't gain a day by traveling West, only by traveling East. You lose a day going West.