Okay, I'm going to have a stab at this. Be forgiving though. Plain old driving license, no advanced doobies, and Mrs Gatsobait and her IAM brain has gone to bed and can't help me cheat.
Cornering forces sounds like (being very literal here) the forces acting on the car when cornering.
Do I win a prize? No? Okay, I'll keep going then. So, if I'm going at 40 in a straight line and then enter a bend without adjusting speed the car's inertia (may not be correct term, but physics books got chucked years ago) will mean it wants to carry on in the same direction rather than take the bend. It's forced to take the bend by friction between the tyres and the road surface overcoming that, plus loads of body roll in Mrs Gatsobait's car though very little in mine (makes up for it by shaking my teeth out over level crossing s though). One tyre has to take most of the load, which I think is the front outside on the way into the bend and the rear outside on the way out. That's just an educated guess on the basis that front wheel drive cars like to understeer when driven too fast into a bend and rear wheel drives oversteer instead, which I imagine doesn't happen much on the way in (long time F1 fan, which is probably where I first heard of over/understeer). Too much body roll or any sensation that a wheel may be losing grip or spinning off and parking up a tree too fast!
Or possibly even
Credit to Mrs Gatsobait for correcting me on positioning for bends. What I used to do was what probably most drivers do - start on the outside, take the shortest path round the bend by drifting towards the insdide of the bend at the apex (without crossing into the other lane on r-handers of course) and then begin to drift back out again. The missus explained that this wasn't too bright as you see round the bend better by following it round the outside as much as possible. Or is the "extra edge to observation" thing? Either way, I've found that since I've been doing that I also take bends at a more leisurely pace. Not that I was going round them suicidally fast before, and not that I'm really going much slower now. It just feels a bit more relaxed. Might be all in my head though.
Extra edge to observation could mean loads of things beside moving the car so you can see a bit more of the road beyond. Seeing movement in the gaps between trees, reflections in shop windows and parked cars, seeing the beam from headlights on the road before you can see the car they're coming from. Just being alert to anything that might give you fractionally more notice of what's coming. Suppose it might even include being able to hear something before you see it - I can usually tell when a car with aftermarket steering wheel and gearknob and a Max Power sticker on the back is coming by the sound of the shelf bender speakers they usually have. Shite! I'm turning into my dad.
Not at all sure about the last two. I have used the brakes in a bend and have lived to tell the tale, though some people do seem to think that it's a good way to have a crash. AFAICT the only effect was that it slowed the car down, though I suppose panic braking so hard you lock the wwheels might not be a lot of fun. As for braking procedure, it's always seemed like a good idea to me to get that over and done with by the time you get there. If I've been reading the road right I ought to be able to slow gently in advance, actually to have judged whether I need to slow down for it. A lot of the time I find just easing off the accelerator does enough, though if anyone is close behind me I now press the brake just to make the lights come on. I'm open to being shot down in flames on this, but I feel that if I have to worry about extra braking in the middle of a corner in order to feel safe, then I was probably going too fast in the first place.