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Two piece of iron are kept at a distance...

Two piece of iron are kept at a distance of 20 cm. The mass of each of the piece is 100 kg. What is the gravitational force acting between them ? Given , `g=6.67xx10^(-11) N*m^2*kg^(-2)`.

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The correct Answer is:
`1.67 xx10^(-5)N`
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CHHAYA PUBLICATION-NEWTONIAN GRAVITATION AND PLANETARY MOTION-PROBLEM SET -I
  1. Two piece of iron are kept at a distance of 20 cm. The mass of each of...

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  2. Two lead spheres are kept at a distance of 30 cm . The mass of each sp...

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  3. The distance between the centres of two spheres of masses 50 kg and 10...

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  4. A sphere of mass 40 kg is alternated by another sphere of mass 15kg wi...

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  5. At what height above the surface of earth acceleration due to gravity ...

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  6. At what height above the surface of earth acceleration due to gravity ...

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  7. A body weight 90 kgf on the surface of earth. How much will it weight ...

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  8. The radius of the earth is 6.38 xx10^8 cm. its mean density is 5.5 g*c...

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  9. Two masses 800 kg and 600 kg are at a distance of 0.25 m apart. Calcul...

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  10. At what height above the surface of the earth will the acceleration du...

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  11. At what height above the surface of the earth will the acceleration du...

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  12. At what depth below the surface of the earth will the acceleration due...

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  13. If the mass of the earth is 6xx10^(27)g and its radius 6400 km, what w...

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  14. If the radius of the earth is 6400 km, g=9.8 m*s^(-2) and G=6.7xx10^(-...

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  15. Show that if the earth stops rotating about its axis, then the acceler...

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  16. Choose the correct alternative : (i) Acceleration due to gravity (in...

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  17. Choose the correct alternative : (ii) Acceleration due to gravity (i...

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  18. Choose the correct alternative : (iii) Acceleration due to gravity i...

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  19. Choose the correct alternative : (iv) The formula -GMm(1//r2-1//r1) ...

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  20. If both the radius and the mean density of a planet are half the radi...

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