Home
Class 12
PHYSICS
At a metro station, a girl walks up a st...

At a metro station, a girl walks up a stationary escalator in time `t_1`. If she remains stationary on the escalator, then the escalator take her up in time `t_2`. The time taken by her to walk up on the moving escalator will be

A

`(t_1+t_2)//2`

B

`t_1t_2//(t_2-t_1)`

C

`t_1t_2//(t_2+t_1)`

D

`t_1-t_2`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise EXERCISE -II|80 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise PRACTICE EXERCISE|58 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise very Short answer type question|15 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|7 Videos

  • MOVING CHARGES AND MAGNETISM

    AAKASH SERIES|Exercise EXERCISE-III|49 Videos

Similar Questions

Explore conceptually related problems

At a metro station, a girl walks up a stationary escalator in time t_1 If she remains stationary on the escalator, then the escalator take her up in time t_2 . The time taken by her to walk up the moving escalator will be.

At a metro station, a girl walks up a stationary escalator in time t_1 If she remains stationary on the escalator, then the escalator take her up in time t_2 . The time taken by her to walk up the moving escalator will be.

At a metro station, a girl walks up a stationary escalator in time t_1 If she remains stationary on the escalator, then the escalator take her up in time t_2 . The time taken by her to walk up the moving escalator will be.

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time t_1 . On other days, if the remains stationary on the moving escalator, then the escalator takes her up in time t_2 . The time taken by her to walk up on the moving escalator will be :

Preeti reached the metro station and found that the escalator was not working. She walked up the stationary escalator in time t_1 . On other days, if the remains stationary on the moving escalator, then the escalator takes her up in time t_2 . The time taken by her to walk up on the moving escalator will be :

A person walks up a stationary escalator in t_(1) second. If he remains stationary on the escalator. Then it can take him up in t_(2) swcond. If the length of the escalator is L , then a. Determine the speed of man with with respect to the escalator. b. Derermine the speed of the escalator. How much time would take him to walk up the moving escaltor?.

A person walks up a stalled escalator in 90 s. When standingon the same escalator, now moving, he is carried in 60 s.The time it would take him to walk up the moving escalator will be:

A person climbs up a stalled escalator in 60s. If standing on the same but escalator running with constant velocity, he takes 40 s. How much time is taken by the person to walk up the moving escalator?

A person walks up a stalled 15 m long escalator in 90 s. When standing on the same escalator, now moving, the person is carried up in 60 s. How much time would it take that person to walk up the moving escalator? Does the answer depend on the length of the escalator?

A man standing on a moving escalator, completes a certain distance in time t_(1) . If the escalator does not move then man covers this distance in time t_(2) by walking. (i) How much time will he take to cover the same distance if he move on the moving escalator in the same direction ? (ii) How much time will he take to cover the same distance if he move on the moving escalator in the opposite direction ?

AAKASH SERIES-MOTION IN A STRAIGHT LINE -EXERCISE -I
  1. At time t = 0, two bodies A and B at the same point. A moves with cons...

    Text Solution

    |

  2. Two bodies of different masses are dropped similtaneously from the top...

    Text Solution

    |

  3. At a metro station, a girl walks up a stationary escalator in time t1....

    Text Solution

    |

  4. Two bodies of different masses are dropped simultaneously from the top...

    Text Solution

    |

  5. The acceleration of a moving body can be found from

    Text Solution

    |

  6. A body falls freely from a height 'h' its average velocity when it rea...

    Text Solution

    |

  7. For a moving body at any instant of time

    Text Solution

    |

  8. A body falls freely from a height 'h' after two seconds if accelaratio...

    Text Solution

    |

  9. A body falls freely from a height 'h' after two seconds if we assume t...

    Text Solution

    |

  10. For a freely falling body

    Text Solution

    |

  11. A hydrogen balloon released on the moon from a height will

    Text Solution

    |

  12. A freely falling body traveled xm in n^(th) second distance travelled ...

    Text Solution

    |

  13. A body is projected up with a velocity 50 "ms"^(-1) after one second i...

    Text Solution

    |

  14. A stone is released from an elevator going up with an acceleration a. ...

    Text Solution

    |

  15. From a building two balls A and B are thrown such that A is thrown upw...

    Text Solution

    |

  16. At the maximum height of a body thrown vertically up

    Text Solution

    |

  17. A body thrown vertically up with velocity u reaches the maximum height...

    Text Solution

    |

  18. A balloon rases up with uniform velocity 'u'. A body is dropped from b...

    Text Solution

    |

  19. In the above problem if body is thrown down with velocity 'u' the equa...

    Text Solution

    |

  20. From the top of a tower two bodies are projected with the same intital...

    Text Solution

    |