A lot of innacurate info being posted here. VMCA is subject to many variables, but the figure published and used for the calculation of V2 is based on the WAT given, assuing t/o configuration (T/o flap extended,gear up) with the C of G at the aft limit (shortest moment arm). Five degrees of bank is permitted.
VMCG takes into account tyre friction in maintaing directional control. VMCG is always lower that VMCA