Home
Class 11
PHYSICS
A block of mass m is kept on the floor o...

A block of mass `m` is kept on the floor of a freely falling lift .During the free fall of the lift, the block is pulled horizontally with a force of `F = 5 N, mu_(s) = 0.1`The friction force on the block will be

A

`5 N`

B

`2 N`

C

`2 N`

D

`2 N`

Text Solution

Verified by Experts

The correct Answer is:
c

When free fall of lift normal reaction on block by lift floor will be zero ,Hence no friction
Promotional Banner

Topper's Solved these Questions

  • NEWTON'S LAWS OF MOTION 2

    CENGAGE PHYSICS|Exercise Multiple Correct|2 Videos
  • NEWTON'S LAWS OF MOTION 2

    CENGAGE PHYSICS|Exercise Linked Comprehension|52 Videos
  • NEWTON'S LAWS OF MOTION 2

    CENGAGE PHYSICS|Exercise Subjective|21 Videos
  • NEWTON'S LAWS OF MOTION 1

    CENGAGE PHYSICS|Exercise Integer|5 Videos
  • PROPERTIES OF SOLIDS AND FLUIDS

    CENGAGE PHYSICS|Exercise INTEGER_TYPE|2 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.

A block is lying static on the floor. The maximum value of static fictional force on the block is 10 N. If a horizontal force of 6 N is applied to the block,what will be the frictional force on the block?

A block of mass m is placed on a rough floor of a lift . The coefficient of friction between the block and the floor is mu . When the lift falls freely, the block is pulled horizontally on the floor. What is the force of friction -

A block is lying static on the floor.The maximum value of static frictional force on the block is 10N .If a horizontal force of 8N is applied to the block,what will be the frictional force on the block ________ (in N) (g = 10 m/s^(2))

A body of mass m kept on the floor of a lift moving downwards is pulled horizontally. If mu is the coefficient of friction between the surface in contact, then

If the mass of block is 1 kg and a force of 10 / sqrt3 N is applied horizontally on the block as shown in the figure . The frictional force acting on the block is :

A block of mass 2 kg is placed on the floor. The coefficient of static friction is 0.4. A force F of 3 N is applied on the block as shown in figure. The force of friction between the block and the floor is (Take g=10 m s^(-2) )

A lift is moving downwards with an acceleration equal to g . A block of mass m , kept on the floor of the lift of friction coefficient mu , is pulled horizontally . The friction acting on the block is

A block of mass 4 kg is kept on a rough horizontal surface. The coefficient of static friction is 0.8. If a force of 19 N is applied on the block parallel to the floor, then the force of friction between the block and floor is

CENGAGE PHYSICS-NEWTON'S LAWS OF MOTION 2-Single Correct
  1. A block of mass m is at rest on a rough wedge as shown in figure. What...

    Text Solution

    |

  2. A triangular prism of mass m placed on it is released from rest on a s...

    Text Solution

    |

  3. A block of mass m is kept on the floor of a freely falling lift .Durin...

    Text Solution

    |

  4. If in pervious problem, an additional force F' = 100N is applied in ve...

    Text Solution

    |

  5. A rectangular wooden box 10 cm xx 20cm xx 40 cm is size is kept on a h...

    Text Solution

    |

  6. Two blocks (m and M) are arranged as in figure Then is friction betwee...

    Text Solution

    |

  7. In the pulley arrangement shown in Fig the pulley p(2) is movable .Ass...

    Text Solution

    |

  8. In the arrangement shown in Fig there is no friction between of mass ...

    Text Solution

    |

  9. A lift moving with a uniform velocity v in which a block of mass m is ...

    Text Solution

    |

  10. A block of mass is kept on an inclined plane of a lift moving down wit...

    Text Solution

    |

  11. The system is pushed by a force F as shown in figure All surface are s...

    Text Solution

    |

  12. If is problem - 57 all situation are same expect force is applied on b...

    Text Solution

    |

  13. A block of mass M is being pulley along horizontal surface .The coeffi...

    Text Solution

    |

  14. Block A as shown in Fig weighs 2.0 N and block B weighs 6.0 N The coef...

    Text Solution

    |

  15. Figure shown a wooden block at rest in equilibrium on a rought horizon...

    Text Solution

    |

  16. A block of mass 2 kg is pushed against a rough vertical wall with a fo...

    Text Solution

    |

  17. A main revolves a stone of mass m tied to the end of a string in a cir...

    Text Solution

    |

  18. A ring of radius r is rotating about a vertical axis along its diamete...

    Text Solution

    |

  19. When the string of a conical pendulum makes an angle of 45^(@) with th...

    Text Solution

    |

  20. Three identical particles are joined together by a thread as shown in ...

    Text Solution

    |