Quote:
Originally Posted by Jerome
The earth is moving about the sun at 108,000 km per hour.
The moon is moving about the sun at 108,000 km per hour.
The moon moves about the earth at 2,288 km per hour.
The moon is moving about the sun at 108,000 km per hour minus 2,288 km per hour, and plus 2,288 km hour.
As the moon moves in front of the earth it must accelerate beyond the speed of the earth, but then it needs to decelerate as it moves behind the earth, otherwise it loses its distance to the earth, and its orbit of the earth.
What force speeds and slows the moon?
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There is no acceleration or de-acceleration of the speed of the Moon. The Moon moves at a relatively constant 2,288 Km per hour around the Earth, anything else is apparent motion as opposed to real motion. There is no additional force needed as there is little change in velocity.