Home
Class 12
PHYSICS
Particles P and Q of mass 20 gm and 40 g...

Particles P and Q of mass 20 gm and 40 gm respectively are simultaneously projected from points A and B on the ground. The initial velocities of P and Q make `45^@ and 135^@` angles respectively with the horizontal AB as shown in the figure. Each particle has an initial speed of 49 m/s. The separation AB is 245 m. Both particles travel in the same vertical plane and undergo a collision. After the collision, P retraces its path. How much time after the collision does the particle Q take to reach the ground?

Text Solution

Verified by Experts

`61.25m , 3.565 s`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise QUESTION FOR DESCRIPTIVE ANSWER|7 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise NUMERICAL EXERCISE (LEVEL -1)|33 Videos

  • MOTION IN A PLANE

    AAKASH SERIES|Exercise EXERCISE-3 (Circular Motion)|7 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH SERIES|Exercise very Short answer type question|15 Videos
AAKASH SERIES-MOTION IN A PLANE-NUMERICAL EXERCISE (LEVEL -2)
  1. A shot is fired with a velocity u at a vertical wall whose distance f...

    Text Solution

    |

  2. An aeroplane flies horizontally at a height h at speed v. An anti - ca...

    Text Solution

    |

  3. Two guns situated at the top of a hill of height 10 m fire one shot ea...

    Text Solution

    |

  4. A particle projected with velcoity v(0) strikes at right alpha p...

    Text Solution

    |

  5. A particle moves in the x-y plane with a constant acceleration of...

    Text Solution

    |

  6. A particle moves in the x-y plane according to the law x=at, y=at (1-a...

    Text Solution

    |

  7. At the same instant two boy throw balls A and B from the window wit...

    Text Solution

    |

  8. A projectile aimed at a mark, which is in the horizontal plane through...

    Text Solution

    |

  9. Particles P and Q of mass 20 gm and 40 gm respectively are simultaneou...

    Text Solution

    |

  10. A particle is projected form point O on the ground with velocity u = s...

    Text Solution

    |

  11. A dip circle is at right angles to the magnetic meridian. What w...

    Text Solution

    |

  12. A glass wind screen whose inclination with the vertical can be changed...

    Text Solution

    |

  13. Two particles are projected from a point at the same instant with velo...

    Text Solution

    |

  14. Two boys simultaenously aim their guns at a brid sitting on a towe...

    Text Solution

    |

  15. A particle is projected with a velocity u making an angle theta with t...

    Text Solution

    |

  16. Figure shows a wire ring of radius a that is perpendicular to the gene...

    Text Solution

    |

  17. Two balls are projected from the same point in the direction inclined...

    Text Solution

    |

  18. Two particles are projected at the same instant from the same point ...

    Text Solution

    |

  19. A gun is kept on an inclined plane . The maximum ranges up and down ...

    Text Solution

    |