A spherical planet far out in space has ...

A spherical planet far out in space has a mass `M_0` and diameter `D_0`. A particle of mass m falling freely near the surface of this planet will experience an acceleration due to gravity which is equal to

`GM_0/D_0^2`

`4mGM_0/D_0^2`

`4GM_0/D_0^2`

`GmM_0/D_0^2`

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