Home
Class 11
PHYSICS
Two parallel rail lines are directed as ...

Two parallel rail lines are directed as north- south. A train X runs towards north with a speed of `15m*s^(-1)` and another train Y runs towards south with a speed of `25 m*s^(-1)` .
(i) the velocity of Y relative to X,

Text Solution

Verified by Experts

Let us assume the velocity from south to north be positive. Then,
Velocity of x, `v_(X)=+15m*s^(-1)`
and velocity of Y, `v_(Y)=-25m*s^(-1)`
(i) The velocity of train Y relative to train X is ,
`v_(YX)=v_(Y)-v_(X)=-25-15=-40 m*s^(-1)`
Promotional Banner

Topper's Solved these Questions

  • VECTOR

    CHHAYA PUBLICATION|Exercise Section Related Questions|23 Videos

  • VECTOR

    CHHAYA PUBLICATION|Exercise Higher Order Thinking Skill (Hots) Questions|28 Videos

  • THERMOMETRY

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIEVE - WBJEE|1 Videos

  • VISCOSITY AND SURFACE TENSION

    CHHAYA PUBLICATION|Exercise EXERCISE (CBSE SCANNER)|9 Videos

Similar Questions

Explore conceptually related problems

Two parallel rail lines are directed as north- south. A train X runs towards north with a speed of 15m*s^(-1) and another train Y runs towards south with a speed of 25 m*s^(-1) . (ii) the velocity of ground with respect to Y,

Two parallel rail lines are directed as north- south. A train X runs towards north with a speed of 15m*s^(-1) and another train Y runs towards south with a speed of 25 m*s^(-1) . (iii) velocity of a monkey running on the roof of X against its motion with a velocity of 5 m*s^(-1) relative to X, as observed by a man standing on the ground.

Two parallel rail tracks run north-south. Train A moves north with a speed of 54 km h^(-1) , and train B moves south with a speed of 90 km h^(-1) . What is the (a) velocity of B with respect to A ?, (b) velocity of ground with respect to B ?, and (c) velocity of a monkey running on the roof of the train A against its motion (with a velocity of 18 km h^(-1) with respect to the train A) as observed by a man standing on the ground ?

An any instant of time, two ships A and B are 70 km apart along a line AB which is directed from north to south . A starts moving towards west at 25km*h^(-1) and at the same time B starts moving towards north at 25km*h^(-1) . Find the distance of closest approach between the two ships and the time required for this.

Two railway tracks are paraller to west-east direction . Along one track train A moves with a speed of 30 m*s^(-1) from west to east, while along the second track, train B moves with a speed of 48 m*s^(-1) from east to west . The relative speed of B with respect to A is

Two men have velocities of 4 m/s towards east and 3 m/s towards south, respectively. The velocity of the first man relative to the second is

CHHAYA PUBLICATION-VECTOR-CBSE SCANNER
  1. Two parallel rail lines are directed as north- south. A train X runs t...

    Text Solution

    |

  2. A body is projected horizontally from the top of a building of height...

    Text Solution

    |

  3. A body is projected horizontally from the top of a building of height ...

    Text Solution

    |

  4. A body is projected horizontally from the top of a building of height ...

    Text Solution

    |

  5. A body is projected horizontally from the top of a building of height ...

    Text Solution

    |

  6. Explain why it is easier to pull a lawn mower than to push it.

    Text Solution

    |

  7. On a two-lane car A is travelling with a speed of 36 "km.h"^(-1) . Two...

    Text Solution

    |

  8. Prove that the path of projectile is parabolic.

    Text Solution

    |

  9. Find the condition for which |vecA+vecB|=|vecA-vecB| ?

    Text Solution

    |

  10. Two paraller rail tracks run north south . Train A moves north with a...

    Text Solution

    |

  11. velocity of B with respect to A

    Text Solution

    |

  12. velocity of ground with respect to B

    Text Solution

    |

  13. velocity of a monkey, running on the roof of the train A against its ...

    Text Solution

    |

  14. What is a projectile ? Obtain an expression for: maximum height , time...

    Text Solution

    |

  15. Is it possible to have constant of change of velocity when velocity ch...

    Text Solution

    |

  16. What are two angles of projection of a projectile projected with vel...

    Text Solution

    |

  17. If a projectile has a constant initial speed and angle of projection, ...

    Text Solution

    |

  18. An old man walks 10 m due east from his house and then turns to his l...

    Text Solution

    |

  19. Should the boy follow the same path followed by the old man ? If not,...

    Text Solution

    |

  20. What are the values you suggest for boy reply ?

    Text Solution

    |