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A system is pushed by a force F as shown...

A system is pushed by a force `F` as shown in figure All surfaces are smooth except between `B` and `C` is `mu`. Minimum value fo `F` to prevent block `B` from down ward slipping is

A

(a)`((3)/(2mu))mg`

B

(b)`((5)/(2mu))mg`

C

(c)`((5)/(2))mumg`

D

(d)`((3)/(2))mumg`

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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 figure shown if friction coefficient of block 1kg and 2kg with ...

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

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

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

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

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

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

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

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

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

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

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

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  13. The figure shown blocks A and B are mass 2 kg and 8 kg and they are co...

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  14. The figure shown blocks A and B are mass 2 kg and 8 kg and they are co...

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  15. The figure shown blocks A and B are mass 2 kg and 8 kg and they are co...

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  16. The blocks are on frictionless inclined ramp and connected by a massle...

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  17. The blocks are on frictionless inclined ramp and connected by a massle...

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  18. The blocks are on frictionless inclined ramp and connected by a massle...

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  19. In the diamram shown in figure , match the following (g=10m//s^(2))

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  20. Match the situations in column I to the accelerations of blocks in the...

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