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In the figure shown a ring of mass M and...

In the figure shown a ring of mass M and a block of mass m are in equilibrium. The string is light and pulley P does not offer any friction and coefficient of friction between pole and M is `mu.` The frictional force offered by the pole to M is

A

Mg directed up

B

`mu` mg directed up

C

(M-m) g directed down

D

`mu` mg directed down

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The correct Answer is:
B
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ALLEN-NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (O-1)
  1. In the setup shown, fird acceleration of the block C.

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  2. A block of mass 2 kg is kept on a horizontal rough plane. If coefficie...

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  3. In the figure shown a ring of mass M and a block of mass m are in equi...

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  4. A force vecF=hati+4hatj acts on the block shown. The force of friction...

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  5. Block B of mass 100 kg rests on a rough surface of friction coeffcient...

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  6. A block of mass 3 kg is at rest on a rough inclined plane as shown in ...

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  7. A block of mass m=2kg is resting on a rough inclined plane of inclinat...

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  8. In the figure shown, if friction coefficient of block 1 kg and 2kg wit...

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  9. A block is pushed with some velocity up a rough inclined plane. It sto...

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  10. A system is pushed by a force F as shown in figure All surfaces are sm...

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  11. Refer the system shown in the figure. Block is siding down the wedge. ...

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  12. A block of mass 1 kg is held at rest against a rough vertical surface ...

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  13. A block is kept on a rough horizontal surface as shown. Its mass is 2 ...

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  14. The mass in the figure can slide on a frictionless surface. When the m...

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  15. A carpenter of mass 50 kg is standing on a weighing machine placed in ...

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  16. In the system in the figure m(1)gtm(2) system is held at rest by threa...

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  17. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

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  18. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

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  19. A uniform rope of mass (m) and length (L) placed on frictionless horiz...

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  20. Ratio of amplitude for two wave is 1:5 .Find the ratio of maximum ampl...

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