Question

The escape velocity from the earth’s surface is 11 km/sec. A certain planet has a radius twice that of the earth but its mean density is the same as that of the earth. The value of the escape velocity from this planet would be

Answer 1

Explanation:

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Answer 2

Explanation:

Solution :

Let

be the mass radius and density of earth and

be the corresponding vaues of the planet. Then escape speed from earth's surface is <br>

<br> Escape speed from planet's surface is <br>