I that nerd that does those extra problems in the back, the really hard ones, just for the heck of it. Well, there is one that has me really stumped. Show that the minimum stopping distance for an auto travelling at speed 'V' is equal to '(v^2)/(2Mg)'. (I use M for the coefficient of static friction) Maybe I'm just dumb, but I don't know where to start. Can someone give me a little hint? It's not actually a homework problem, but I literally go CRAZY if I can't solve a problem I try... Does it maybe have something to do with the basicx equation of 'V^2=V.^2+2ad'?