ROTFL LMAO - that makes two of us!
WDTBD - The subject has been exhaustively covered over the last few years on PPrune.
OK - to help you, from just one of the 'search' links (March 2005) which would, I would think, answer your question?
I can only assume you are not using 'search' correctly. As someone once said " for all the good these suppositories are doing me, I might as well..................."
Would it also be reasonable to assume that a 'pilot' on 757/767 might just be expected to know the answer?
The industry defines V1 as the ‘Decision Speed’ (JAR/FAR 25.107), although it assumes that the decision to stop has been taken.
V1 has to be higher than the Engine Failure Speed, Vef (a certification term), the difference between Vef and V1 includes a recognition and reaction time factor. Thus V1 is the speed at which the pilot has taken at the decision to stop and is ready to, and/or is commencing the first actions to stop the aircraft.