Home
Class 9
PHYSICS
Two trains are moving at speeds 80 km/h ...

Two trains are moving at speeds 80 km/h and 100 km/h on parallel tracks in the same direction. From this information, one can say that

A

the separation between the trains must be increasing

B

the separation between the trains must be decreasing

C

the separation between the trains remains the same

D

the separation between the trains must be changing

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Two trains are coming from opposite directions with speeds of 75 km/hr and 100 km/hr on two parallel tracks. At some moment the distance between them is 100 km. After T hours, distance between them again 100 km. T is equal to 1 h r b. 1 1/7h r c. 1 1/2h r d. 2 h r s

Two trains cross each other at speeds of 36 km//h and 54 km//h travelling in the opposite directions in 2 sec. What is the length of the second train (in km)?

Two trains A and B moving with speed 36 km/hr and 72 km/hr resp. in opposite direction. A Man moving in train A with speed 1.8 km/hr opposite to direction of train. Find velocity of man as seen from train B (in m/s)

Two trains A and B,186 m and 200 m long.are running at 64 km/h and 80 km/h, respectively on parallel tracks. If they are runningin the opposite directions, then how much time(in seconds) will a person sitting in the first train A take to cross the other train?

HC VERMA-QUESTION BANK-QUESTION BANK
  1. Two particles, A and B, move along the same straight line. At t=0, the...

    Text Solution

    |

  2. Which statement is correct ?

    Text Solution

    |

  3. Two trains are moving at speeds 80 km/h and 100 km/h on parallel track...

    Text Solution

    |

  4. A particle is moving along a straight line.

    Text Solution

    |

  5. The distance-time graph of a particle moving along a curved path is a ...

    Text Solution

    |

  6. Look at the given distance -time graph of an object .

    Text Solution

    |

  7. A particle moves along a straight line. Its velocity and speed are den...

    Text Solution

    |

  8. Three forces act on a particle and keep ai at rest. It is possible to ...

    Text Solution

    |

  9. Which of the following is a contact force ?

    Text Solution

    |

  10. Normal force always acts

    Text Solution

    |

  11. A heavy ball is dropped from a height on a pile of sand. After falling...

    Text Solution

    |

  12. Consider a cylindrical rod immersed in water in a vertical position. T...

    Text Solution

    |

  13. To open the door of a room, you push on the handle, and to close it yo...

    Text Solution

    |

  14. A sound wave is generated due to a vibrating tuning fork. The separati...

    Text Solution

    |

  15. The amplitude of density variation corresponding to a sound wave is 1 ...

    Text Solution

    |

  16. Mark the statement True (T) or False (F):The magnitude of the velocity...

    Text Solution

    |

  17. Mark the statement True (T) or False (F): The magnitude of the speed o...

    Text Solution

    |

  18. Mark the statement True (T) or False (F):The velocity of a particle at...

    Text Solution

    |

  19. Mark the statement True (T) or False (F):The velocity of a particle at...

    Text Solution

    |

  20. Mark the statement True (T) or False (F): The position -time graph of ...

    Text Solution

    |