The escape velocity from the earth is ab...

The escape velocity from the earth is about 11 km/s. The escape velocity from a planet having twice the radius and the twice mean density as the earth, is

`"22 km s"^(-1)`

`"11 km s"^(-1)`

`"5.5 km s"^(-1)`

`"15.5 km s"^(-1)`

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