Home
Class 11
PHYSICS
A 4 kg block A is placed on the top of 8...

A 4 kg block A is placed on the top of 8 kg block B which rests on a smooth table.

A just slips on B when a force of 12 N is applied on A. Then the maximum horizontal force F applied on B to make both A and B move together, is

A

12 N

B

24 N

C

36 N

D

48 N

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (COMPETITIVE THINKING)|98 Videos
  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos
  • FRICTION IS SOLIDS AND LIQUIDS

    TARGET PUBLICATION|Exercise MCQ (EVALUATION TEST)|21 Videos
  • FORCE

    TARGET PUBLICATION|Exercise Evaluation Test|18 Videos
  • Gravitation

    TARGET PUBLICATION|Exercise Exercise|273 Videos

Similar Questions

Explore conceptually related problems

A block of mass 2kg is kept on the floor. The coefficient of static friction is 0.4 . If a force F of 2.5N is applied on the block as shown in the figure, the frictional force between the block and the floor will be.

The coefficient of static friction between a block of mass 0.25 kg and a horizontal surface is 0.4. Find the horizontal force applied to it.

The coefficient of static friction between a block of mass 0.25 kg and a horizontal surface is 0.4. Find the horizontal force applied to it.

Three blocks A, B and C of masses 4 kg, 2 kg and 1 kg respectively, are in contact on a frictionless surface, as shown. If a force of 14 N is applied on the 4 kg block, then the contact force between A and B is

Three blocks of mass 3 kg, 2 kg and 1 kg are placed side-by-side on smooth surface as shown in figure. If a horizontal force of 24 N is applied on 3 kg block, then the net force on 2 kg block will be

A 20 kg metal block is placed on a horizontal surface. The block just begins to slide when horizontal force of 100N is applied to it . Calculate the coefficient of static friction . If coefficient of kinetic friction is 0.4 then find minimum force to maintain its uniform motion.

A block of 50 kg rests on a table. A horizontal force of 294 N is required to just move the block, the coefficient of static friction between the surfaces in contant (mu_(s)) is

Solve the following questions : A cart with mass 20 kg went 50m in a straight line on a plain and smooth road when a force of 2 N was applied to it . How much work was done by the force ?

Choose the correct options The rough surface of a horizontal table offers a definite maximum opposing force to initiate the notion of a block along the table, which is the motion of a block along the table, which is proportional to the resultant normal force given by the table. Forces F_1 and F_2 act at the same angle theta with the horizontal and both are just initiating the slide motion of the block along the table. Force F_1 is a pulling force while the force F_2 is a pushing force. F_2>F_1 , because

A block of mass m_(2) is placed on a horizontal table and another block of mass m_(1) is placed on top is it. An increasing horizontal force F = alpha t is exerted on the upper block but the lowwer block never moves as a result. If the coefficient of friction between the blocks is mu_(1) coefficient of friction between the blocks is mu_(1) and that between the lower block and the table is mu_(2), then what is the maximum possible value of mu_(1)//mu_(2) ?

TARGET PUBLICATION-FRICTION IS SOLIDS AND LIQUIDS -MCQ (CRITICAL THINKING)
  1. A block of mass m=2kg is resting on a rough inclined plane of inclinat...

    Text Solution

    |

  2. If F(i) and F(g) are the frictional force between surface of contact f...

    Text Solution

    |

  3. A 4 kg block A is placed on the top of 8 kg block B which rests on a s...

    Text Solution

    |

  4. Wooden block of weight W(1) is kept on a horizontal surface. A pan is ...

    Text Solution

    |

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

    Text Solution

    |

  6. A block of mass m lying on a rough horizontal plance is acted upon by ...

    Text Solution

    |

  7. A block of mass 10kg is placed on a rough horizontal surface having co...

    Text Solution

    |

  8. The pressure at a point in a fluid is independent of "".

    Text Solution

    |

  9. Assertion : To empty an oil tank, two holes are made. Reason : Oi...

    Text Solution

    |

  10. Two vessels have different base area. They are filled with water to th...

    Text Solution

    |

  11. The manual of a car instructs the owner to inflate the tyers to a pres...

    Text Solution

    |

  12. What is the pressure on a swimmer 10m below the surface of lake? g=10m...

    Text Solution

    |

  13. In car lift compressed air exerts a force F1 on a small piston having ...

    Text Solution

    |

  14. The densities vary very little over a wide range I pressure and temper...

    Text Solution

    |

  15. Two pistons (areas A(1) and A(2)) exerting forces F(1) and F(2) on a l...

    Text Solution

    |

  16. hydraulic breakes work on priciple of

    Text Solution

    |

  17. Choost the CORRECT statement.

    Text Solution

    |

  18. A liquid distributed by stirring comes to rest after some time due to ...

    Text Solution

    |

  19. When a fluid is through a tube, then the reason of viscous force actin...

    Text Solution

    |

  20. Deep water runs slow. Explain.

    Text Solution

    |