Question

the speed of the rotation of the Earth is Greater at the equator than at the article circle

Answer 1

A point on the equator will travel more distance during one revolution than a corresponding point on the Arctic Circle. Since the elapsed time is the same, the point on the equator must be going at a faster rate. so speed is directly proportional to distance so speed is more at equator

Answer 2

Hi friend
As we go from equator to its arctic circle,the speed of rotation decreases ,this is because the distance from the axis of rotation decreases.
Hope this helps you....