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Newton's Law of Gravitation

Si unit of un...

Question

Si unit of universal gravitational constant
Nm^2kg^-2
or
kg^-1m^3s^-2
which one and why

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Solution

Kg^-1m^3s^-2
f=Gm1m2/r^2
by apllying units
kgms^-2=Gkg^2/m^2
unit Of G=kg^-1m^3s^-2

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