Question

State the the unit and dimension of the universal gravitational constant (G).

Answer 1

Dimension
[M-1 L3 T-2]

Unit
Nm2 kg-2.

Answer 2

Hii dear,


◆ Answer-
Unit - Nm^2/kg^2
Dimension - [M^-1L^3T-2]

◆ Explanation-
Gravitational force is given by-
F = GMm/r^2
G = Fr^2/Mm

Therefore,
Unit of G = Nm^2/kg^2

Dimensions of G
[G] = [Fr^2/Mm]
[G] = [MLT^-2][L]^2 / [M][M]
[G] = [M^-1L^3T^-2]

Hope that was useful.