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Four particles having masses, m, 2m, 3m,...

Four particles having masses, m, 2m, 3m, and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.

A

`(24 m^(2) G)/a^(2)`

B

`(6m^(2) G)/a^(2)`

C

`(4sqrt(2) Gm^(2))/a^(2)`

D

Zero

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The correct Answer is:
C
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ALLEN -GRAVITATION-EXERCISE 1
  1. The value of universal gravitational constant G depends upon :

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  2. Three identical bodies (each mass M) are placed at vertices of an equi...

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  3. Four particles having masses, m, 2m, 3m, and 4m are placed at the four...

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  4. Tidal waves in the sea are primarily due to

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  5. During the journey of space ship from earth to moon and back, the maxi...

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  6. If the distance the centres of earth and moon is D and mass of earth i...

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  7. A satellite of the earth is revolving in a circular orbit with a unifo...

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  8. Following curve shows the variation of intesity of gravitational field...

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  9. Suppose the acceleration due to gravity at earth's surface is 10ms^-2 ...

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

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

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

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

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  14. Acceleration due to gravity at the centre of the earth is :-

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  15. The value of 'g' on earth surface depends :-

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  16. The value of 'g' reduces to half of its value at surface of earth at a...

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  17. The acceleration due to gravity on a planet is 1.96 ms^(-1). If it is ...

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  18. If the earth stops rotating sudenly, the value of g at a place other t...

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  19. Diameter and mass of a planet is double that earth. Then time period o...

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  20. Gravitation on moon is (1)/(6) th of that on earth. When a balloon fil...

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