Home
Class 11
PHYSICS
Block A weighing 100 kg rests on a block...


Block A weighing 100 kg rests on a block B and is tied with a horizontal string to the wall at C. Block B weighs 200 kg. The coefficient of friction between A and B is 0.25 and between B and the surface is 1/3. The horizontal force P necessary to move the block B should be `(g=10m//s^(2))`

A

1150 N

B

1250 N

C

1300 N

D

1420 N

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • FLUID MECHANICS

    ERRORLESS |Exercise Fluid Mechanics|19 Videos

  • GRAVITATION

    ERRORLESS |Exercise SET|27 Videos

Similar Questions

Explore conceptually related problems

A block A of mass 200 kg rest on a block B of mass 300 kg . A is tied with a horizontal string to a wall. Coefficient of friction between A and B is 0.25 and that between B and floor is 0.2 . The horizontal force F needed to move the block B is

A is a 100kg block, and B is a 200kg block. As shown in figure the block A is attached to a string tied to a wall. The coefficient of friction between A and B is 0.2 and the coefficient of fricition between B and floor is 0.3. Then calculate the minimum force required to move the block B. (take g=10m//s^(2) ).

A block A of mass 2 kg rests on another block B of mass 8 kg which rests on a horizontal floor. The coefficient of friction between A and B is 0.2 while that between B and floor is 0.5. when a horizontal force of 25 N is applied on the block B. the force of friction between A and B is

A block A of mass 2 kg rests on another block B of mass 8 kg which rests on a horizontal floor. The coefficient of friction between A and B is 0.2 while that between B and floor is 0.5 .When a horizontal floor F of 25 N is applied on the block B the force of friction between A and B is

A block A with mass 100kg is resting on another block B of mass 200kg. As shown in figure a horizontal rope tied to a wall hold it. The coefficient of friction between A and B is 0.2 while coefficient of friction between B and the ground is 0.3 . the minimum required force F to start moving B will be.

ERRORLESS -FRICTION-MCQ S
  1. Assertion: Pulling a lawn roller is easier than pushing it. Reason: ...

    Text Solution

    |

  2. Assertion : Angle of repose is equal to angle of limiting friction. ...

    Text Solution

    |

  3. Assertion: Two bodies of masses M and m(M gt m) are allowed to fall fr...

    Text Solution

    |

  4. Assertion: Friction is a self-adjusting force. Reason: Friction does...

    Text Solution

    |

  5. Assertion : The value of dynamic friction is less than the limiting fr...

    Text Solution

    |

  6. Assertion: The acceleration of a body down a rough inclined plane is g...

    Text Solution

    |

  7. A force of 19.6 N when applied parallel to the surface just moves a bo...

    Text Solution

    |

  8. If the normal force is doubled, the coefficient of friction is

    Text Solution

    |

  9. A body of weight 50 N placed on a horizontal surface is just moved by ...

    Text Solution

    |

  10. Block A weighing 100 kg rests on a block B and is tied with a horizont...

    Text Solution

    |

  11. A rough vertical board has an acceleration a so that a 2 kg block pres...

    Text Solution

    |

  12. A stone weighing 1 kg and sliding on ice with a velocity of 2 m / s is...

    Text Solution

    |

  13. A body of mass 10 kg slides a long a rough horizontal surfce. The coef...

    Text Solution

    |

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

    Text Solution

    |

  15. In the above question, if the lift is moving upwards with a uniform ve...

    Text Solution

    |

  16. A body of mass 2 kg is moving on the ground comes to rest after some t...

    Text Solution

    |

  17. A cyclist moves in a circular track of radius 100 m . If the coefficie...

    Text Solution

    |

  18. A block of mass 5kg lies on a rough horizontal table. A force of 19.6 ...

    Text Solution

    |

  19. A motor car has a width 1.1m between wheels. Its centre of gravity is ...

    Text Solution

    |

  20. A child weighing 25 kg slides down a rope hanging from the branch of a...

    Text Solution

    |