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Compare the minimum velocity with ...

Compare the minimum velocity with which a particle must be projected vertically upwards from the surfaces of the earth in order that it may never return to the earth with that which is needed to make it escape from the earth ' s gravitational field .

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The correct Answer is:
`1 :sqrt2`
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NN GHOSH-GRAVITATION-EXERCISE
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  2. With what velocity must a body be projected vertically upwards from...

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  3. Compare the minimum velocity with which a particle must be...

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  4. Calculate the mass and mean density of the earth from the following da...

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  5. How many hours would make a day if the earth were rotating at such a h...

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  6. The mass of Mars is one - tenth that of the earth and its diamet...

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  7. Calculate the escape speed of an atmospheric particle which is...

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  8. Two masses, 800 kg and 600 kg, are at a distance 0.25 m apart. Compute...

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  9. A man can jump vertically to a height of 1.5 m on the earth. Calculate...

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  10. A body weights 20 kg on the surface of the earth . What will be its i...

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  11. Find the self gravitationl potential of (a) a thin unifrom spherica...

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  12. A projectile is fired vertically from the earth's surface with an init...

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  13. A short , straight and frictinless tunnel is bored through the centr...

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  15. Three identical particles each of mass "m" are arranged at the corner...

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  16. An iron ball o fradius 1 m and density 8000 kg m^(-3) is placed in ...

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  17. A particles is fired vertically from the surface of the earth with a...

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  18. Calculate the pressure caused by gravitational copmression at the cen...

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