Fact: The Earth is rotating on it's own axis every 24 hours.
Question: If, for some reason I won't specify the current speed of the Earth and could slow it down(say by 5%). Will it speed up again back to its previous speed of its own?
Let's suppose the Earth's speed is decreased by 50%. Such that its period of rotation will be 48 hours. Would its period gradually return to 24 hours?