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The limiting friction between two bodies...

The limiting friction between two bodies in contact is independent of

A

Nature of surfaces in contact

B

The area of surfaces in contact

C

Normal reaction between the surfaces

D

All the above

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The correct Answer is:
B
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Passage IV) Angular frequency in SHM is given by omega=sqrt(k/m) . Maximum acceleration in SHM is omega^(2) A and maximum value of friction between two bodies in contact is muN , where N is the normal reaction between the bodies. Now the value of k, the force constant is increased, then the maximum amplitude calcualted in above question will

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Answer the question briefly and the point: What is the angle of friction between two surfaces in contact having coefficient of friction (1)/(sqrt3) ?

AAKASH SERIES-LAWS OF MOTION-EXERCISE - I
  1. Explain why a high pressure tyre roll more easily than a low pressure ...

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  2. Matching block type LIST - I (a) Two rotating discs are brought...

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  3. The limiting friction between two bodies in contact is independent of

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  4. (A) : When external force acting on a body moving on a rough horizonta...

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  5. Lubrication reduces friction because

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  6. A cyclist pedals the cycle for some time and then stops peddling, then

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  7. The limiting friction between two surfaces depends

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  8. A block 'B' rests on 'A'. A rests on a horizontal surface 'C which is ...

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  9. To keep a particle moving with constant velocity on a frictionless hor...

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  10. Frictional force between two bodies

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  11. If man is walking, direction of friction is

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  12. On a frictionless horizontal surface , assumed to be the x-y plane ,...

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  13. Car tyres are made of rubber and not of iron because

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  14. Aeroplanes are streamlined to reduce

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  15. It is easier to pull a lawn roller than to push it because pulling

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  16. A uniform rope of length l lies on a table . If the coefficient of fri...

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  17. In case of pulling & pushing minimum forces required (w sin alpha)/(co...

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  18. A body is moving in a circular orbit. It is just about to slide to the...

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  19. Adjoining figure shows two blocks A and B pushed against the wall with...

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  20. A body is just supported at the face of a cart moving at an accelerati...

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