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The limiting force of friction betwwen t...

The limiting force of friction betwwen two bodies in contact independent of

A

Nature of the surface in contact

B

The area of surfaces in contact

C

Normal reaction between the surfaces

D

The materials of the bodies

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Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta A force of 49N is just able to move a block of wood weighing 10kg on a rough horizontal surface The coefficient of friction is .

Friction between any two surfaces in contact is the force that opposes the relative motion between them The force of limiting friction (F) between any two surfaces in contact is directly proportional to the normal reaction (R) between them F prop R or F = mu R where mu is coefficient of limiting friction If theta is angle of friction then mu = tan theta The angle of friction in the above question is .

AAKASH INSTITUTE-LAWS OF MOTION-Assignment (SECTION-A)
  1. Which of the following is a self adjusting force ?

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  2. Maximum force of friction is called

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  3. The limiting force of friction betwwen two bodies in contact independe...

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

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  5. Which is a suitable method to decrease friction

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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