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If a ladder weighting 250 N is placed ag...

If a ladder weighting `250 N` is placed against a smooth vertical wall having coefficient of friction between it and floor 0.3, then what is the maximum force of friction available at the point of contact between the ladder and the floor?

A

75 N

B

50 N

C

35 N

D

25 N

Text Solution

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The correct Answer is:
A
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TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (COMPETITIVE THINKING)
  1. Which one of the following is NOT used to reduce friction ?

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  2. STATEMENT-1: It is easier to pull a heavy object than to push it on a ...

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  3. If a ladder weighting 250 N is placed against a smooth vertical wall h...

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  4. The coefficient of static friction, mu(s) between block A of mass 2 k...

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  5. A lift is moving down with an acceleration equal to the acceleration d...

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  6. Maximum acceleration of the train in which a 50 kg box lying on its fl...

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  7. A block B is pushed momentarily along a horizontal surface with an ini...

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  8. A block rests on a rough inclined plane making an angle of 30^@ with t...

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  9. A wooden box of mass 8kg slides down an inclined plane of inclination ...

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  10. A wooden box lying at rest on an inclined surface of a wet wood is hel...

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  11. What is the maximum value of the force F such that the block shown in ...

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  12. A system consists of three masses m(1),m(2) " and " m(3) connected by ...

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  13. Maximum value of static friction is .

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  14. Which of the following statements is incorrect ?

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  15. A body of mass M is kept n a rough horizontal surfasce (friction coeff...

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  16. Consider a frictionless ramp on which a smooth object is made to side ...

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  17. Block B lying on a table weighs w. The coefficient of static friction ...

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

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

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  20. A block of mass 2kg is kept on the floor. The coefficient of static fr...

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