Evidently, Newtonian mechanics wasn't your forte. 1/2mv squared is a pain, the higher you speed when beginning a stop translates into greater distance to stop or a set speed when going off the end, pretty elemental.
A 10 knot overrun occurs when, after rejecting above V1 by 1 knot, apply all the braking, spoilers deployed what speed you go into the grass on a field limited runway. If you are such an aviator, you should be aware of this si ple physics problem.
The BR700 series doesn't offer derated, but flex power is available on the FMS and used when indicated.
How are those answers coming?
GF