What is the unit of G/g?

G= fr^2/Mm

hence unit is nm^2/kg^2

g=f/m

hence unit is n/kg

hence G/g = m^2/kg (meter square by kg)

Note :- ^ is used for square , as G=  square of F /Mm

or 

We know that

F= G×M×m/r²

And also F= m×g

So. m×g = G×M×m/r²

Or G/g = r²/M

Hence th unit will be meter²/kg

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