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Gravitational potential difference betwe...

Gravitational potential difference between surface of a planet and a point situated at a height of 20 m above its surface is 2joule/kg. if gravitational field is uniform, then the work done in taking a 5kg body of height 4 meter above surface will be-:

A

2 J

B

20 J

C

40 J

D

10 J

Text Solution

Verified by Experts

The correct Answer is:
A
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MOTION-GRAVITATION-Exercise - 1 (Section - A :- Newtons Law of Gravitation & Gravitational Field, Potential and Potential Energy) 
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  2. A satellite of the earth is revolving in a circular orbit with a unifo...

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  4. Assume that a tunnel is dug through earth from North pole to south pol...

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  5. Mars has a diameter of approximately 0.5 of that of earth, and mass of...

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  6. Three equal masses of 1 kg each are placed at the vertices of an equil...

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  7. One can easily "weigh the earth" by calculating the mass of earth usin...

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  8. A particle falls on earth : (i) from infinity. (ii) from a height 10...

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  9. Two different masses are droped from same heights. When these just str...

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  10. The diagram showing the variation of gravitational potential of earth ...

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  11. Gravitational potential difference between surface of a planet and a p...

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  12. If M(e) is the mass of earth and M(m) is the mass of moon (M(e)=81 M(m...

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  13. The gravitational potential energy is maximum at :

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  14. A missile is launched with a velocity less than the escape velocity. T...

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  15. A body projected from the surface of the earth attains a height equal ...

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  16. The gravitational potential energy of a body at a distance r from the ...

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  17. A particle falls towards the earth from inifinity. The velocity with w...

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  18. A projectile of mass m is thrown vertically up with an initial velocit...

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  19. Two small and heavy spheres, each of mass M, are placed a distance r a...

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  20. An artificial satellite moving in a circular orbit around the earth ha...

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