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 `6xx10^(24) kg` and `G=6.66xx10^(-11)Nm^(2)//kg^(2)`. The speed of the moon is nearly

1km/sec

4 km/sec

8 km/sec

11.2 km/sec

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