Home
Class 11
PHYSICS
A uniform chain of length 2 m is kept on...

A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?

A

`7.2 J`

B

`3.6 J`

C

`120 J`

D

`1200 J`

Text Solution

Verified by Experts

The correct Answer is:
`(2)`
`L = 2m, Rightarrow l = L/n Rightarrow W = Mgl/2n^(2)`
Promotional Banner

Topper's Solved these Questions

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -II (H.W)|75 Videos

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -III|54 Videos

  • WORK , ENERGY & POWER

    NARAYNA|Exercise EXERCISE -1 (H.W)|60 Videos

  • WAVES

    NARAYNA|Exercise Exercise-IV|56 Videos

  • WORK POWER AND ENERGY

    NARAYNA|Exercise Level-VI (Integer)|12 Videos

Similar Questions

Explore conceptually related problems

A uniform chain of length 4m is kept on a table such that a length of 120 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg What is the work done in pulling the entire chain on the table ?

A uniform chain of length 2m is kept on a table such that a length of 60 cm hangas freely from the adge of the table . The table . The total mass of the chain ia 4 kg What is the work done in pulling the entire the chain the on the table ?

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 rope of length 3 m and mass 1 kg is kept on a table such that 80 cm of its length hangs freely from the edge of the table . Calculate the work done in pulling the entire rope 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 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. If the chain is limiting equlibrium, what is the coefficient of friction for the contact between table and chain?

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

NARAYNA-WORK , ENERGY & POWER -EXERCISE -II (C.W)
  1. The kinetic energy of a moving body is given by k = 2v^(2), k being in...

    Text Solution

    |

  2. The kinetic energy (KE) versus time graph for a particle moving along ...

    Text Solution

    |

  3. A uniform chain of length 2 m is kept on a table such that a length of...

    Text Solution

    |

  4. The potential energy of a body mass m is U=ax+by the magnitude of acce...

    Text Solution

    |

  5. A block of mass M is hanging over a smooth and light pulley through a ...

    Text Solution

    |

  6. The kinetic energy K of a particle moving along x - axis varies its po...

    Text Solution

    |

  7. Figure given below shows the plot of the conservative force F, in a un...

    Text Solution

    |

  8. Match the following {: ( "Column I", " Column II"),(" (A) Example o...

    Text Solution

    |

  9. A massless spring with a force constant K = 40N//m hangs vertically fr...

    Text Solution

    |

  10. A block of mass m moving at a speed v compresses as spring thrugh a di...

    Text Solution

    |

  11. A bead of mass 1/2 kg starts from rest from A to move in a vertical pl...

    Text Solution

    |

  12. An outfielder throws a cricket ball with an initial kinetic energy of ...

    Text Solution

    |

  13. Velocity-time graph of a particle of mass (2 kg) moving in a straight ...

    Text Solution

    |

  14. A block of mass 1 kg slides down a vertical curved track that is one q...

    Text Solution

    |

  15. A force F = Ay^(2)+By+C acts on a body at rest in the Y-direction. The...

    Text Solution

    |

  16. A block of mass m=1kg moving on a horizontal surface with speed v(i)=2...

    Text Solution

    |

  17. In the fig. The potential energy U of a particle plotted against its p...

    Text Solution

    |

  18. If F = 2x^(2) - 3x -2, then choose correct option:-

    Text Solution

    |

  19. The potential energy of a 1kg particle free to move along the x-axis i...

    Text Solution

    |

  20. A particle located in one dimensional potential field has potential en...

    Text Solution

    |