Would Earth rotation have been more slowed down because of the tidal effect from the Sun, as seems to be the case with Mercury and Venus? Due to the giant impact hypothesis the angular momentum from the impact was increased and split.
If Earth not would have been a two part angular momentum system, but a single planet with the same rotation at that time as it have today, what would the tidal effect from sun have done to earth?
Are there any theories meant to explain the distribution of angular momentum in the Solar system? Roughly!
The reason for my interest is of course the question how important the Earth-Moon system's creation was to the development of which we are a part. It's a pretty well-shaped planet we live on.