The S.I. unit of gravitational constant G is

A) \( N Kg^{-2}\)

B) \( Nm Kg^{-1}\)

C) \( Nm^{2} Kg^{-1}\)

D) \( Nm^{2} Kg^{-2}\)

Correct answer:
D) \( Nm^{2} Kg^{-2}\)



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