Qstnid -I-18-two Satellites Going In Equatorial Plane Have Almost Same Radii. As Seen From The Earth One Moves From East One To West And The Other From West To East. Will They Have The Same Time Period As Seen From The Earth? If Not Which One Will Have Less Time Period? - 11: Gravitation

with Solutions - page 2

#18
Two satellites going in equatorial plane have almost same radii. As seen from the earth one moves from east one to west and the other from west to east. Will they have the same time period as seen from the earth? If not which one will have less time period?
Ans : No, both satellites will have different time periods as seen from the Earth. The satellite moving opposite (east to west) to the rotational direction of the Earth will have less time period, because its relative speed with respect to the Earth is more.
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