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A ball is thrown vertically upwards with...

A ball is thrown vertically upwards with a velocity of 49 m/s. Calculate the total time it takes to return to the surface of the earth.

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R G PUBLICATION-GRAVITATION-EXAMPLE
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  9. A ball thrown up vertically returns to the thrower after 6 s. Find the...

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  13. The volume of 50 g of a substance is 20 cm^3. If the density of water ...

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  14. The volume of a 500 g sealed packet is 350 cm^3. Will the packet float...

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  15. The value of g

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  16. The weight of an object at the centre of the earth of radius R is

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  17. The S.I. unit of gravitational constant is

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  18. Mass of the earth

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  19. The weight of a body of mass 1 kg

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  20. The unit of relative density is

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