The distance between centre of the earth...

The distance between centre of the earth and moon is 384000 Km. If the mass of the earth is 6x`10^24 kg` and G is 6.66x`10^(-11) Nm^2//kg^2`. The speed of the moon is nearly

`11.2 km //sec`

`4km //sec`

`1km //sec`

`8 km //sec`

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