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Choose the correct option...

Choose the correct option

A

The friction force is dependent on the roughness of the surface.

B

The kinetic friction is proportional to normal reaction.

C

The friction is independent on the area of contact.

D

All statements are correct.

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The correct Answer is:
D
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CP SINGH-FRICTION-Exercises
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  3. A car is moving along a stight horizontal road with a speed v(0) . If ...

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  4. Two cars of unequal masses use similar tyres. If they are moving at th...

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  6. Starting from rest , a body slides down at 45^(@) inclined plane in tw...

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  7. A smooth block is released at rest on a 45^@ incline and then slides a...

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  8. A block is released from the top of an inclined plane of inclination t...

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  9. The upper half of an inclined plane of inclination 45^(@) is perfectly...

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  10. A body is sliding down an inclined plane (mu = (1)/(2)). If the normal...

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  11. A ball is thrown vertically with some velocity . A constant air resist...

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  12. In an imaginary atmosphere, the air exerts a small force F on any part...

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  13. Two objects A and B are thrown upward simultaneously with the same spe...

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  14. A ball is thrown vertically upward with speed 10 m//s and it returns t...

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  15. A particle is projected up a rough inclined plane of inclination theta...

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  16. A particle is projected up a 37^(@) rough incline with velocity v(0). ...

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  17. As shown in the figure , the friction force acting on the block is

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  18. The friction force acting on the block at time t = 4 s will be

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  19. A block of mass 2kg rests on a rough inclined plane making an angle of...

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