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A block is kept on a rough horizontal su...

A block is kept on a rough horizontal surface as shown. Its mass is 2 kg and coefficient of friction between block and surface `(mu)=0.5.` A horizontal force F is acting on the block. When

A

F = 4 N, acceleration is zero.

B

F = 4 N, friction is 10 N and acceleration is `3m//s^(2).`

C

F = 14 N, acceleration is `2 m//s^(2).`

D

F = 14 N, friction is 14 N.

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The correct Answer is:
A, C
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ALLEN-NEWTON'S LAWS OF MOTION & FRICTION-EXERCISE (O-1)
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  2. Refer the system shown in the figure. Block is siding down the wedge. ...

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

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

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

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

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

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

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

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

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

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

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

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  20. A sphere of mass 10 kg is placed in equibriu in a V shaped groove plan...

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