Q15
The speed of rotation of the earth is the highest ________
A.
Along the Equator
AnswerB.
At the North Pole
C.
Along the Tropic of Cancer
D.
Along the Arctic Circle
Answer: Option A
Solution
Answer: Option A
Solution:
The earth rotates once every 23 hours, 56 minutes and 4.09053 seconds, called the sidereal period, and its circumference is roughly 40,075 kilometers. Thus, the surface of the earth at the equator moves at a speed of 460 meters per second - or roughly 1,000 miles per hour.