1.

What will be the formula of mass of the earth in terms of g, R and G ?

Answer»

`"G"(R )/(g)`
`"g"(R^(2))/(G)`
`"g"^(2)(R )/(G)`
`"G "(g)/(R )`

SOLUTION :The gravitational force (F)`=(GMm)/(R^(2))` and F=MG.
Equating both the values of gravitational force,
`(GMm)/(R^(2))=mg" or "M="g"(R^(2))/(G)`
where M is the mass of the EARTH.


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