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Explain what is meant by the equation g=...

Explain what is meant by the equation `g=Gxx(M)/(R^(2))`
Where the symbols have their usual meanings.

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LAKHMIR SINGH & MANJIT KAUR-GRAVITATION-Exercise
  1. Write down the weight of a 50 kg mass on the earth. (g = 9 .8 m//s^2)

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  2. If the weight of a body on the earth is 6 N, what will it be on the mo...

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  3. Explain what is meant by the equation g=Gxx(M)/(R^(2)) Where the sym...

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  4. (a) What do you mean by the term free fall ? (b) During a free fal...

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  5. Does Newton's third law of motion apply to gravitational force?

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  6. Give reason for the following: The force of gravitation between tw...

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  7. Describe how the gravitational force between two objects depends on th...

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  8. What happens to the gravitational force between two objects when the d...

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  9. Explain why, if a stone held in our hand is released, it falls towards...

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  10. Calculate the force of gravitation between two objects of masses 50 kg...

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  11. What is the force of gravity on a body of mass 150 kg lying on earth (...

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  12. The mass of sun is 2xx10^(30) kg and mass of earth is 6xx10^(24) kg. I...

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  13. A piece of stone is thrown vertically upwards. It reaches the maximum ...

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  14. A stone falls from a building and reaches the ground 2.5 seconds later...

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  15. A stone is dropped from a height of 20 m . (i) How long will it take...

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  16. A stone is thrown vertically upwards with a speed of 20 m/s. How high ...

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  17. When a cricket ball is thrown vertically upwards, it reaches a maximum...

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  18. Write the differences between mass and weight of an object.

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  19. Can a body have mass but no weight ?

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  20. A force of 20 N acts upon a body whose weight is 9.8 N. what is the ma...

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