soon the former circle became the worlds ( or at least averys ) longest ever whiplash line , with the chain of students undulating from one end to the other , the students at the far end of the line flung outward by powerful centrifugal forcesfirst five flying off into the snow , then ten , then twentytill finally the whole line , even those not yet whiplashed , dove into the snow in the worlds ( or at least averys ) largest ever pig pile .