I'm just going to copy my post from before in the other thread and note that you are still assuming a rate which you don't have evidence for:
Now if the Spherical Earth believers think that it is OK, after all that energy that was released in the Big Bang, that threw the earth billion of miles to only have the earth rotate 5 times the speed of today's rotation, then I’m OK with it.
Earth did not exist at the time of the big bang, so it wasn't thrown. It only formed roughly 5 billion years ago if I recall correctly, so that would only put it at roughly 3 times.
However, that still appears to be based upon a linear extrapolation, which will not necessarily hold for that length of time.
It also wouldn't mean much. The centrifugal force for Earth at the equator works out to be roughly 0.3% of gravity if I recall correctly. (F=omega^2*r, omega=2*pi/T=2*pi/86400=7.27e-5 rad/s.
Thus F=(7.27e-5)^2*6371000=0.03 m/s^2. Gravity is roughly 10 m/s^2, thus the centrifugal force is roughly 0.3% of gravity).
It is proportional to the angular velocity squared. So multiplying it, even by 5, only increases it by a factor of 25, which brings it up to 7.5%.
So gravity still wins by a very large margin and thus things still stay on Earth.
A 100 kg person would appear to weigh roughly 93 kg.
To me it does not make any common sense, that such an explosion would make the earth to rotate so slowly. Hey, but yesterday you proved that you don’t have any common sense in your group.
Firstly, the big bang wasn't an explosion, it was an expansion of space time.
Secondly, and far more importantly, why would that impart angular momentum?
It is effectively pushing everything outwards. No rotation.
In order to provide rotation it needs to spin one part one way and another part the other way.
Don’t forget that the dot was spinning very fast.
Says who?
So we can deduce that the notion of a rapid spin of the dot is false, unless you have the physics to show what put the brakes on the earth to stop spinning.
I would say that rapid spinning dot is likely false.
As for what puts the brakes on Earth, that would be the moon. Earth doesn't simply lose angular momentum, it transfers it to the moon extending its orbit. That was already pointed out to you.
A brief explanation:
The moon is orbiting Earth, while Earth rotates.
The water on the surface of Earth is somewhat free to move.
The moon exerts a tidal force on Earth and everything on it. This is because one side is closer and thus has more gravitational attraction than the other.
This causes the water to bulge out off Earth (i.e. tides).
But this water doesn't just stay there. It is still spinning with Earth. This means the bulge of water is slightly in front of the moon (measured along the direction of rotation/orbit). You can think of this as it getting pulled up in line with the moon only to move forward a bit due to Earth's rotation.
This makes Earth asymmetric, with a bulge slightly in front of the moon's path.
This in turn exerts a gravitational force on the moon, accelerating it along its orbit and in turn slowing Earth down.
This results in the moon going to a higher orbit and thus taking longer to orbit. This process transfers angular momentum from Earth to the moon.
This makes it a complicated effect.
It is dependent upon the strength of the tidal forces, which is dependent upon the distance between the moon and Earth and thus on the time (as the moon moves further away over time, where this rate varies based upon the strength of the force between the tides and the moon and the size of the moon's orbit). It is also dependent upon how far in front the tides are which is dependent upon the rotational speed of Earth.
I'm not sure what it would end up as.
As for the rest:
I was told in college that it was a dot that was spinning and with the gravitational forces it exploded.
This seems to be combining several different points which I will get to in a moment.
The tiny dot part is the big bang possibly. The explosion could refer to several things.
If the earth is not do to the Big Bang, then where did it come from and please provide citation...
Stellar nebulae.
Basically a gravitational collapse of gas and dust to form stellar systems. They slowly accumulate into stars and planets.
First stars were formed which went through their life to form heavier elements and then exploded.
They form from the gas and dust by exchange of angular momentum between the particles combined with gravitational forces (and other interactions to cause collisions) resulting in a collapse of a the dust and gas into stars and planets.
The star is formed first similar to Jupiter with it continuing to accumulate more and more mass until it eventually has enough for the force of gravity to crush it enough to start nuclear fusion. This kicks off the solar wind which then blows away a lot of gas and dust, with larger bits continuing to clump together to form larger planets or moons or asteroids or the like.
Some angular momentum is "lost" by ejecting some mass from the system making exoplanets.
As for citation, here is a starting point:
https://en.wikipedia.org/wiki/Nebular_hypothesis