The mass of a planet is six times that o...

The mass of a planet is six times that of the earth. The radius of the planet is twice that of the earth. It's the escape velocity from the earth is `v`, then the escape velocity from the planet is:

`11.2 km//s`

`44.8 km//s`

`22.4 km//s`

`5.6 km//s`

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