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A block weighs W is held against a verti...

A block weighs W is held against a vertical wall by applying a horizontal force F. The minimum value of F needed to hold the block is

A

Less than W

B

Equal to W

C

Greater than W

D

Data is insufficent

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The correct Answer is:
C
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ERRORLESS -FRICTION-MCQ S
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  2. A force of 98 N is required to just start moving a body of mass 100 kg...

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  3. A block weighs W is held against a vertical wall by applying a horizon...

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  4. The maximum static frictional force is

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  5. Maximum value of static friction is .

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  6. Pulling force making an angle theta to the horizontal is applied on a ...

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  7. In the figure shown, a block of weight 10 N resting on a horizontal su...

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  8. Two masses A and B of 10 kg and 5 kg, respectively , are connected wit...

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  9. The limiting friction is

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  10. Which is a suitable method to decrease friction

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  11. A uniform rope of length L meters is lying over a table. If the coeffi...

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  12. Which of the following statements is not true

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  13. A block of 1 kg is stopped against a wall by applying a force F perpen...

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  14. A heavy uniform chain lies on a horizontal table-top. If the coefficie...

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  15. The blocks A and B are arranged as shown in the figure. The pulley is ...

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  16. Work done by a frictional force is

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  17. L changes partly from a table which is kept in equilibrium by friction...

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  18. When two surfaces are coated with a lubricant, then they

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  19. A 20 kg block is initially at rest on a rough horizontal surface. A h...

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  20. A block A with mass 100kg is resting on another block B of mass 200kg....

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