Home
Class 12
PHYSICS
A lift is going up. The total mass of th...

A lift is going up. The total mass of the lift and the passengers is 1500kg. The variation in the speed of the lift is given by the graph.

(a) What will be the tension in the rope pulling the lift at time t equal to
(i) 1s, (ii) 6s, (iii)11s ?
(b) What will be the average velocity and the average acceleration during the course of the entire motion?

A

17400N

B

14700 N

C

12000 N

D

Zero

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NLM & FRICTION

    MOTION|Exercise EXERCISE-2|66 Videos

  • NLM & FRICTION

    MOTION|Exercise EXERCISE-2(Level-II)|25 Videos

  • NLM & FRICTION

    MOTION|Exercise SOLVED EXAMPLE|16 Videos

  • NEWTON'S LAWS OF MOTION & FRICTION

    MOTION|Exercise Exercise - 3 Section-B|12 Videos

  • ONE DIMENSION MOTION

    MOTION|Exercise Exercise - 3 |Section - B Previous Year Problems | JEE MAIN|12 Videos
MOTION-NLM & FRICTION-EXERCIS-1
  1. A system consists of two cubes of mass m(1), and m(2) respectively con...

    Text Solution

    |

  2. Consider a system of two massless idealsprings and a block which is in...

    Text Solution

    |

  3. A lift is going up. The total mass of the lift and the passengers is 1...

    Text Solution

    |

  4. Figure shows a man of mass 50kg standing on a light weighing machine k...

    Text Solution

    |

  5. With what acceleration 'a' should the box of figure moving up so that ...

    Text Solution

    |

  6. A triangular block of mass M with angle 30º, 60º, 90º rests with its 3...

    Text Solution

    |

  7. Which of the following statement is absolutely correct about mass -

    Text Solution

    |

  8. In the arrangement shown, the pulleys are fixed and ideal, the strings...

    Text Solution

    |

  9. A small block of mass m rests on a smooth wedge of angle theta. With w...

    Text Solution

    |

  10. Find out the reading of the weighing machine in the following cases.

    Text Solution

    |

  11. The maximum value of the block m(2) for which the system will remain i...

    Text Solution

    |

  12. If the coefficient of friction between A and B is mu, the maximum acce...

    Text Solution

    |

  13. If the coefficient of friction between an insect and bowl is mu and th...

    Text Solution

    |

  14. A block is placed on a rough floor and a horizontal force F is applie...

    Text Solution

    |

  15. Mark the correct statements about the friction between two bodies - ...

    Text Solution

    |

  16. A body is placed on a rough inclined plane of inclination theta. As th...

    Text Solution

    |

  17. A block of mass 2kg rests on a rough inclined plane making an angle of...

    Text Solution

    |

  18. A body of mass m moves with a velocity v on a surface whose friction c...

    Text Solution

    |

  19. A box 'A' is lying on the horizontal floor the compartment of a train ...

    Text Solution

    |

  20. A wooden block of mass m resting on a rough horizontal table (coeffici...

    Text Solution

    |