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A body is projected vertically upwards f...

A body is projected vertically upwards from the surface of the earth with a velocity equal to half of escape velocity of the earth. If `R` is radius of the earth, maximum height attained by the body from the surface of the earth is

A

`R/6`

B

`R/3`

C

`2/3 R`

D

`R`

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The correct Answer is:
B
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ALLEN -GRAVITATION-EXERCISE 1
  1. The escape velocity for a body projected vertically upwards from the s...

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  2. The escape velocity for the earth is 11.2 km / sec . The mass of anoth...

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  3. A body is projected vertically upwards from the surface of the earth w...

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  4. Binding energy of moon and earth is :-

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  5. Two artificial satellites A and B are at a distance r(A) and r(B) abov...

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  6. The average radii of orbits of mercury and earth around the sun are 6x...

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  7. A body is dropped by a satellite in its geo-stationary orbit :

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  8. Two ordinary satellites are revolving round the earth in same elliptic...

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  9. Kepler's second law is a consequence of

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  10. One projectile after deviating from its path starts moving round the e...

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  11. In adjoining figure earth goes around the sun in eliptical orbit on wh...

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  12. Potential energy and kinetic energy of a two particle system under Ima...

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  13. A satellite of earth of mass 'm' is taken from orbital radius 2R to 3R...

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  14. If a graph is plotted between T^(2) and r^(3) for a planet, then its s...

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  15. A planet is revolving around the sun. its distance from the sun at apo...

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  16. A satellite launching statian should be

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  17. A satellite is launched into a circular orbit close to the earth's sur...

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  18. A satellite moves around the earth in a circular orbit with speed v. I...

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  19. If the length of the day is T, the height of that TV satellite above t...

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  20. If two bodies of mass M and m are revolving around the centre of mass ...

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