Question

if the earth were made of wood the mass of wooden earth would have been 10 percent as much as it is now ( without change in its diameter) calculate escape speed from the surface of this earth
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Answer 1

If the earth were made of wood, the mass of wooden earth is 10% as much as it is now without the change in its diameter. Calculate the escape velocity of space shot from the surface of wooden earth. Radius of earth : R = 6400 Km. Mass of earth : M = 6X 1024 Kg. Constant of gravitation : G = 6.67 X 10 – 11 Nm2/Kg2