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Can mass of a body ever be zero?...

Can mass of a body ever be zero?

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The mass of a body

(i) mass of a body is always constant. Why ? (ii) mass of a body can never be zero. Why ? (iii) At the center of earth, weight of a body is zero. Why ?

Mass of a body cannot be zero.

Can centre of mass of a body lie where there is absolutely no mass ?

Can mass of a body be taken concentrated at its centre of mass for the purpose of calculating its rotational inertia ?

STATEMENT - 1 : A body has no inertia, when it is at the centre of the earth. and STATEMENT - 2 : At centre of the earth the mass of a body is non - zero .

(a) What is the cause of kinetic energy possessed by a body? (b) can kinetic energy of a body ever be negative?

Can the centre of mass of a body lie outside the object? Given one examples

MBD -HARYANA BOARD-GRAVITATION-Example
  1. Find the change in weight percentage of a body when it is taken from e...

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  2. At what distance from the centre of the earth, the value of accelerati...

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  3. A block of wood is kept on a table top The mass of the wooden block is...

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  4. A block of wood is kept on a table top The mass of the wooden block is...

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  5. A solid body floating in water has 1//5th of its volume above the surf...

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  6. Explain why Moon exerts a lesser gravitational force on objects as com...

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  7. The unit of g/G is

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  8. What is the SI unit of weight ?

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  9. The earth's gravitaional force causes an acceleration of 5m//s^(2) in ...

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  10. With a specific initial velocity, we can jump higher on the moon than ...

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  11. The value of g on the surface of the moon

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  12. Write the formula to find the magnitude of the gravitational force bet...

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  13. Can mass of a body ever be zero?

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  14. You find your mass to be 42 kg on a weighing machine. In your mass mor...

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  15. How the value of g changes as one moves from equator to pole?

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  16. Why does an object float or sink when placed on the surface of water?

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  17. Why do you feel lighter when you swim?

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  18. Why a truck or a motor but has much wider tyres?

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  19. A body weighs more at poles than at the equator of earth. Why ?

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  20. The weight of an object on the moon is equal to of its weight on the e...

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