If frequency F, velocity v and density D are considered fundamental units, the dimensional formula for momentum will be :

DVF2 DV2F-1 D2F2V2 DV4F-3

DV4F-3

Momentum : p = mv = [MLT-1] [MLT-1] = [T-1]a[LT-1]b[ML-3]c On solving : a = -3; b = 4; c = 1 p = DV4F-3