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Which is a suitable method to decrease f...

Which is a suitable method to decrease friction

A

Polishing

B

Lubrication

C

Ball bearing

D

All of these

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AAKASH INSTITUTE-LAWS OF MOTION-Assignment (SECTION-A)
  1. The limiting force of friction betwwen two bodies in contact independe...

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  2. Why is it difficult to move a bike with its brakes on ?

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  3. Which is a suitable method to decrease friction

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  4. A cubical block rests on a plane of mu= sqrt(3) . The angle through wh...

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  5. A block of mass 1 kg is projected from the lowest point up along the i...

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  6. A child weighing 25 kg slides down a rope hanging from a branch of a t...

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  7. An object of mass 1 kg moving on a horizontal surface with initial ve...

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  8. A heavy box is slid across a rough floor with an initial speed of 4 m/...

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  9. If a block moving up an inclined plane at 30^(@) with a velocity of 5 ...

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  10. A chain is lying on a rough table with a fraction 1/n of its length ha...

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  11. A block has been placed on an inclined plane with the slope angle thet...

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  12. A horizontal force of 10N is necessary to just hold a block stationary...

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  13. In the figure shown, the coefficient of static friction between the bl...

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  14. Two block A and B of masses 5 kg. and 3 kg. respectively rest on smoot...

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  15. A small metallic sphere of mass m is suspended from the ceiling of a c...

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  16. A cystlist riding a bicycle a bicycle at a speed of 14sqrt(3) ...

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  17. A car turns a corner on a slippery road at a constant speed of 10 m /s...

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  18. A car is moving on a horizontal circular track of radius 0.2 km with a...

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  19. A boy is sitting on the horizontal platform of a joy wheel at a distan...

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  20. A vehicle is moving on a track with constant speed as shown in figure....

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