Home
Class 11
PHYSICS
When a body is thrown up in a lift with ...

When a body is thrown up in a lift with a velocity `u` relative to the lift, the time of flight is found to be `t`. The acceleration with which the lift is moving up is

A

`((u-g t))/(t)` upwards

B

`((u-g t))/(t)` downwards

C

`((2u-g t))/(t)` upwards

D

`((2u-g t))/(t)` downwards

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • DESCRIPTION OF MOTION

    ANURAG MISHRA|Exercise Level-2|25 Videos
  • DESCRIPTION OF MOTION

    ANURAG MISHRA|Exercise Level-3|34 Videos
  • DESCRIPTION OF MOTION

    ANURAG MISHRA|Exercise Example|127 Videos
  • FORCE ANALYSIS

    ANURAG MISHRA|Exercise Matching type|13 Videos

Similar Questions

Explore conceptually related problems

A body is thrown up in a lift with a velocity 5ms^(-1) relative to the lift and the time of flight is found to be 0.8 s. The acceleration with which the lift is moving up is (g=10ms^(-2))

A body is thrown up in a lift with a velocity u relative to the lift, and returns to the lift in time t . Show that the lift s upward acceleration is (2u-gt)/(t) .

A lift is moving up with acceleration a A person inside the ligt throws the ball upwards with a velocity u relativeto hand. a. What is the time of flight of the ball? b. What is the maximum height reached by the ball in the lift?

If the body is taken in a lift up with a a = g/2 . Then new time period?

A simple pendulum is hung in a stationary lift and its periodic time is T. What will be the effect on its periodic time T if (i) the lift is moving up with a uniform velocity v, (ii) the lift is moving up with a uniform acceleration a, and (iii) the lift is moving down with a uniform acceleration a?

A particle is thrown up inside a stationary lift of sufficient height. The time of flight is T. Now it is thrown again with same initial speed v_0 with respect to lift. At the time of second throw, lift is moving up with speed v_0 and uniform acceleration g upward (the acceleration due to gravity). The new time of flight is:

A man in a lift throws a ball upwards with velocity v and catches it in time t _(1) when lift is moving up with some acceleration. Again he throws a ball up with same velocity 'V' and catches it in time 't _(2) ' when lift is moving down with same acceleration.Velocity of projection V is

The weight of a man standing on a weighing machine in a lift is noted when (i) the lift is moving with a uniform velocity and (ii) the lift is moving down with an acceleration a. The ratio of the two weights is 4/3 . What is the value of a

ANURAG MISHRA-DESCRIPTION OF MOTION-Level-1
  1. A particle moving with uniform acceleration from A to B along a straig...

    Text Solution

    |

  2. a point source of light is rotating in a horizontal plane at a speed o...

    Text Solution

    |

  3. When a body is thrown up in a lift with a velocity u relative to the l...

    Text Solution

    |

  4. A block is kept on the floor of an elevator. The elevator starts desce...

    Text Solution

    |

  5. A point moves in a straight line so its displacement x meter at time t...

    Text Solution

    |

  6. Two particles start moving from the same point along the same straight...

    Text Solution

    |

  7. A ball is thrown up with a certain velocity at angle theta to the hori...

    Text Solution

    |

  8. A ball is thrown up with a certain velocity at an angle theta to the h...

    Text Solution

    |

  9. A particle is thrown up with a ccrtain velocity and at an angle 0 with...

    Text Solution

    |

  10. the velocity of a particle varies with time as shown below the distanc...

    Text Solution

    |

  11. From a high tower at time t=0, one stone is dropped from rest and simu...

    Text Solution

    |

  12. A particle moves with constnat acceleration in the positive x-axis. At...

    Text Solution

    |

  13. A particle moves with constant acceleration a in the positive x-axis. ...

    Text Solution

    |

  14. A particle is projected from gound At a height of 0.4 m from the groun...

    Text Solution

    |

  15. A particle moves in x-y plane according to the law x = 4 sin 6t and y ...

    Text Solution

    |

  16. A swimmer crosses a flowing stream of width omega to and fro in time t...

    Text Solution

    |

  17. The trajectory of a particle is as shown here and its trajectory follo...

    Text Solution

    |

  18. A bird flies for 4 seconds with a velocity of |t-2|m//sec. In a straig...

    Text Solution

    |

  19. A particle has an initial velocity of 9m//s due east and a constant ac...

    Text Solution

    |

  20. A body is thrown vertically upwards from A. The top of a tower . It re...

    Text Solution

    |