When the van has a flip, the van tips on its side the van spins and Jason flies out of the van, pause when you first see him fly out, this might take some time to get it right but you will then use the zoom button and there is the cable.
Yeh, I think I caught that too.
There's another mistake in the movie, but I can't enter it yet, as there are too many being looked at just now.
Basically, Jason never had a fear of water before this movie. Look at Friday 13th part 6 (I think) and you'll see him voluntarily enter the water to waste a guy in a boat.