Wow! I never had heard of this character Velikovsky. Surfing a bit, I noted that most of the books which supported his theories were being sold by one guy..
I am not a scientist, but I can see that this stuff sounds like something along the lines of what Ptolemy would have embraced!
There is no way that a planet can naturally stop turning.
If one believes that it happened supernaturally, that is well and good but is NOT SCIENCE!