Home
Class 11
PHYSICS
In how much time trains will pass each o...

In how much time trains will pass each other if they are moving in the same direction.

Text Solution

Verified by Experts

`v_(A//B)=v_(A)-v_(B)=3v-v=2v=10m//s`
`t=(l_(A)+l_(B))/(v_(A//B))=(100+200)/10=30s`
Promotional Banner

Topper's Solved these Questions

  • RELATIVE MOTION

    CP SINGH|Exercise EXERCISE|33 Videos

  • NEWTONS LAWS OF MOTION

    CP SINGH|Exercise EXERCISES|84 Videos

  • ROTATIONAL MOTION

    CP SINGH|Exercise Exercise|172 Videos

Similar Questions

Explore conceptually related problems

The speeds of two trains A and B are 42 km/h and 33 km/h, respectively. Length of train B is 3/2 times the length of A. Train A takes 50 s to cross train B, if they are moving in the same direction. How long will they take to cross each other if they are moving in opposite directions ?

The length of trains A and B are in the ratio of 2 : 3 . They pass a statice pole in 4 seconds and 5 seconds, respectively . In what time (in seconds) will they they cross each other when they move in the same direction ?

Two trains 130 m and 110 m long are going in the same direction. The faster train takes one minute to pass the other completely. If they are moving in opposite directions, they pass each other completely in 3 seconds. Find the speed of each train?

Two trains, 130 m and 110 m long, are going in the same direction. The faster train takes one minute to pass the other completely. If they are moving in opposite directions, they pass each other completely in 3 seconds. Find the speed of each train

Two trains,130 and 110 metres long,are going in the same direction.The faster train takes one minute to pass the other completely. If they are moving in opposite directions,they pass each other completely in 3 seconds.Find the speed of the faster train.38m/sec b.42m/sec c.46m/sec d.50m/sec

CP SINGH-RELATIVE MOTION-EXERCISE
  1. In how much time trains will pass each other if they are moving in the...

    Text Solution

    |

  2. A 120 m long train is moving in a direction with speed 20 m/s . A trai...

    Text Solution

    |

  3. Two trains are moving with equal speed in opposite directions along tw...

    Text Solution

    |

  4. A train of 150 m length is going toward north direction at a speed of ...

    Text Solution

    |

  5. Two cars are moving in the same direction with the same speed 30 km//h...

    Text Solution

    |

  6. An express train is moving with a velocity v1. Its driver finds anothe...

    Text Solution

    |

  7. Two car A and B travelling in the same direction with velocities v1 an...

    Text Solution

    |

  8. A ball A is thrown up vertically with a speed u and at the same instan...

    Text Solution

    |

  9. A car 'A' moves due north at a speed of 40km//hr, while another 'B' mo...

    Text Solution

    |

  10. A car A going north-east at 80km//h and another car B is going south-e...

    Text Solution

    |

  11. Rain is falling vertically downward with velocity 4m//s. A man is movi...

    Text Solution

    |

  12. Two boys are standing at the ends A and B of a ground, where AB=a. The...

    Text Solution

    |

  13. A ship is travelling due east at a speed of 15 km//h. Find the speed ...

    Text Solution

    |

  14. Three particles A, B and C are situated at the vertices of an equilate...

    Text Solution

    |

  15. Four particles A, B, C and D are situated at the cornerst of a square ...

    Text Solution

    |

  16. Six particles situated at the corners of a regular hexagon of side a m...

    Text Solution

    |

  17. A particle A is at origin and particle B is at distance y=-d at t=0. T...

    Text Solution

    |

  18. A police jeep is chasing with, velocity of 45 km//h a thief in another...

    Text Solution

    |

  19. A cart is moving horizontally along a straight line with constant spee...

    Text Solution

    |

  20. A boat is moving with a velocity 3 hat i+ 4hat j with respect to groun...

    Text Solution

    |

  21. A boat crosses a river with a velocity of 8(km)/(h). If the resulting ...

    Text Solution

    |