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The diameter of an iron sphere of mass 1...

The diameter of an iron sphere of mass 10 kg is same as that of aluminium sphere of mass 3.5 kg. Both of them are made to fall freely simultaneously from the top of a tower. When both of them would be at 10 m above the ground, they would have same ………….

A

acceleration

B

momentum

C

potential energy

D

kinetic enery

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The correct Answer is:
A, C

Their acceleration would be equal to gravitational acceleration .g..
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KUMAR PRAKASHAN-WORK AND ENERGY -QUESTION & ANSWER (CHOOSE THE CORRECT OPTION FROM THOSE GIVEN BELOW EACH QUESTION)
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  3. The diameter of an iron sphere of mass 10 kg is same as that of alumin...

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  7. Water stored in the dam ………..

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  10. ("1 megawatt (MW)")/("1 kilowatt (kW)")=…………..

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  11. What is necessary for work to be done? Choose the correct statement....

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  12. A body of mass 10kg performs motion along a circle of radius 5m with s...

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  14. Work done on a body is equal to change in its………….

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  15. Mass of a man is 60kg. He climbs up 20m height with a bucket having wa...

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  16. A box of 20kg mass is pulled by force F with constant velocity on a ho...

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  17. Masses of two bodies are 1kg and 4kg respectively. If their kinetic en...

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  18. Engine of a car of mass 1500kg, keeps car moving with constant velocit...

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  19. Height of water dam in hydroelectric power station is 20m. How much wa...

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  20. Speed of a body in motion is doubled. Its kinetic energy is now …………. ...

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