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A body is allowed to fall from a height of 20 metres from the ground. How much time will take to reach the ground? What will be its velocity just a moment before hitting the ground?

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R G PUBLICATION-GRAVITATION-EXAMPLE
  1. What is relative density?

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  2. What is the relationship between the buoyant force on an object and th...

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  3. The relative density of mercury is 13.6. What does this statement mean...

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  4. Why is the value of g different in different places?

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  5. Give two examples of free fall.

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  6. What is the difference between g and G?

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  7. The gravitational force between two objects of small masses on the sur...

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  8. Find out the unit of universal gravitional constant.

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  9. The weight of a body is different in different places. Why?

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  10. State the universal law of gravitation.

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  11. Establish the relation between g and G

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  12. Why the gravitational law is called universal?

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  13. Write Kepler's laws on planetary motion.

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  14. If the distance between two bodies of mass 200 kg each is 3 meters, wh...

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  15. A body is allowed to fall from a height of 20 metres from the ground. ...

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  16. A stone is thrown up with a velocity of 20 m/s. Neglecting air resista...

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  17. A stone is thrown up with a velocity of 20 m/s. Neglecting air resista...

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  18. A stone allowed to fall from the top of a well hit the water surface a...

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  19. A stone allowed to fall from the top of a well hit the water surface a...

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  20. With what velocity a body has to be thrown up so that it can rise up t...

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