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Two spheres, each of mass 625 kg, are pl...

Two spheres, each of mass 625 kg, are placed with their centres 50 cm apart. The gravitational force between them is

A

10.42 dyne

B

15.42 dyne

C

20.42 dyne

D

5.42 dyne

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TARGET PUBLICATION-Gravitation-Exercise
  1. Assertion: Two solid spheres of radius r and 2 r, made of same materia...

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  2. If the distance between two bodies is doubled, the force of gravitatio...

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  3. Two spheres, each of mass 625 kg, are placed with their centres 50 cm ...

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  4. The value of universal gravitational constant G in M.K.S system is 6.6...

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  5. The gravitational force on a body of mass 5 kg at the surface of the e...

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  6. If the distance between the sun and the earth is increased by three ti...

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  7. A body weighs 81 N on the surface of the earth. What is the gravitatio...

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  8. Two point masses each equal to I kg attract one another with a force o...

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  9. Gravitational force between two objects separated by 20 cm is 1.0xx10^...

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  10. Mass of the Earth is 81 times mass of the Moon and distance between Ea...

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  11. Value of G is to be determined using Cavendish balance. If all quantit...

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  12. The mass of the moon is 1/(81) of the earth but the gravitational pul...

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  13. The radius of the Earth shrinks by 1 %, its mass remaining the same. T...

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  14. If both the mass and radius of Earth decrease by 1 %, the value of acc...

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  15. Consider a planet in some solar system which has mass double the mass ...

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  16. A body weighs 700 gm-wt on the surface of the earth. How much will it ...

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  17. Radius of earth is equal to 6 xx 10^6. Acceleration due to gravity is ...

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  18. A (non-rotating) star collapses onto itself from an initial radius Ri,...

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  19. Where will it be profitable to purchase 1 kilogram sugar?

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  20. A spring balance is graduated on sea level. If a body is weighed with ...

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