Question

the dimensions of gravitational constant G ??

Answer 1

G = (Fr2)/m1m2
Where F is Force between masses m1, m2 at a distance r.

Dimensional Formula of Universal Constant of Gravitation = M-1L3T-2
SI unit of Universal Constant of Gravitation is Nm2kg-2.

Answer 2

FT(L) 2/(M)2.
Force times length squared divided by mass squared.