Home
Class 11
PHYSICS
A uniform chain of mass m & length L is ...

A uniform chain of mass m & length L is kept on a smooth horizontal table such that `(L)/(n) `portion of the chaing hangs from the table. The work dione required to slowly bringsthe chain completely on the table is

A

`mgL//16`

B

`mgL//32`

C

`3mgL//32`

D

`mgL//8`

Text Solution

Verified by Experts

The correct Answer is:
B
`W = (mgl)/(2n^(2))`.
Promotional Banner

Topper's Solved these Questions

  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level- III (C.W)|50 Videos

  • WORK POWER AND ENERGY

    NARAYNA|Exercise NCERT (Based Questions)|45 Videos

  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level- I (C.W)|60 Videos

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE IV|43 Videos

Similar Questions

Explore conceptually related problems

A chain of mass m and length L is over hanging , from the edge of a smooth, horizontal table such that , 3/4th of its length is lying on , the table .The work done in pulling the chain completely , on to the table is

A uniform chain of mass 4 kg and length 2 m is kept on table such that 3//10^("th") of the chain hanges freely from the edge of the table. How much work has to be done in pulling the entire chain on the table?

A uniform chain of mass m and length l is kept on a horizontal table with half of its length hanging from the edge of the table.Work done in pulling the chain on to the table so that only 1/5 th of its length now hangs from the edge is K((mgl)/(200)) .Find the value of K.

A uniform chain has mass Mand length L. It is lying on a smooth horizontal table with half of its length hanging vertically downward. The work done in pulling the chain up the table is:

A unifrom chain of mass M and length L lies on a table with nth part of it hanging off the table. Find the work required to slowly pull the hanging part up to the table.

A chain of uniform mass m and length L is held on a frictionless table in such a way that its (1)/(n) th part is hanging below the edge of table. The work done to pull the hanging part of chain is :-

A uniform chain of mass m and length l is lying on a horizontal table with one-third of its length hanging over the edge of the table. What is the speed of the chain, when it just loses contact with the table?

A uniform chain of length L lies on a smooth horizontal table with its length perpendicular to the edge of the table and a small portion of the chain is hanging over the edge. The chain starts sliding due to the weight of the hanging part

A uniform chain of mass M and length L is lying on a frictionless table in such a way that its 1//3 parts is hanging vertically down. The work done in pulling the chain up the table is

A uniform chain has a mass m and length l . It is held on a frictionless table with one - sixth of its length hanging over the edge. The work done in just pulling the hanging part back on the table is :

NARAYNA-WORK POWER AND ENERGY-Level- II (C.W)
  1. Two forces each of magnitude 10 N act simultaneously on a body with th...

    Text Solution

    |

  2. n' identical cubes each of mass 'm' and edge 'L' are on a floor. If th...

    Text Solution

    |

  3. A uniform chain of mass m & length L is kept on a smooth horizontal ta...

    Text Solution

    |

  4. A body is displaced from (0,0) to (1 m, 1m) along the path x = y by a ...

    Text Solution

    |

  5. A particale moves under the effect of a force F = Cs from x = 0 to x =...

    Text Solution

    |

  6. Under the action of force 2 kg body moves such that its position 'x' v...

    Text Solution

    |

  7. A body of mass 5 kg at rest under the action of a force which gives i...

    Text Solution

    |

  8. A body freely falls from a certain height onto the ground in a time 't...

    Text Solution

    |

  9. A man has twice the mass of a boy and has half the kinetic energy of ...

    Text Solution

    |

  10. The speed of a car changes from 0 to 5 ms^(-1) in the first phase and ...

    Text Solution

    |

  11. A rubber ball falling from a height of 5 m rebounds from hard floor to...

    Text Solution

    |

  12. A long spring when stretched by x cm, has a potential energy U. On inc...

    Text Solution

    |

  13. An elastic spring is compressed between two blocks of masses 1 kg and ...

    Text Solution

    |

  14. A block of mass 2 kg is on a smooth horizontal surface. A light of for...

    Text Solution

    |

  15. A bullet of mass 10 gm is fired horizontally with a velocity 1000 ms^(...

    Text Solution

    |

  16. A drop of mass 1.00 g falling from a height 1.00 km. It hits the groun...

    Text Solution

    |

  17. A block of mass 5 kg is initially at rest on a rough horizontal surfac...

    Text Solution

    |

  18. A block of mass 2 kg is initially at rest on a horizontal frictionless...

    Text Solution

    |

  19. A freely falling body takes 4s to reach the ground. One second after r...

    Text Solution

    |

  20. A vertically projected body attains the maximum height in 6s. The rati...

    Text Solution

    |