Home
Class 12
PHYSICS
A particle of mass m is projected from t...

A particle of mass m is projected from the ground with an initial speed `u_0` at an angle `alpha` with the horizontal. At the highest point of its trajectory, it makes a completely inelastic collision with another identical particle, which was thrown vertically upward from the ground with the same initial speed `u_0.` The angle that the composite system makes with the horizontal immediately after the collision is

A

`(pi)/4`

B

`(pi)/4+alpha`

C

`(pi)/2-alpha`

D

`(pi)/2`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS

    MOTION|Exercise Exercise - 4 Level-I|18 Videos

  • Capacitance

    MOTION|Exercise EXERCISE -4 LEVEL II|19 Videos

  • CIRCULAR MOTION

    MOTION|Exercise EXERCISE - 4|16 Videos
MOTION-CENTRE OF MASS-Exercise - 4 Level-II
  1. STATEMENT-l : In an elastic collision between two bodies, the relative...

    Text Solution

    |

  2. A particle moves in the X-Y plane under the influence of a force such ...

    Text Solution

    |

  3. Two balls having linear momenta vecp(1)=phati and vecp(2)=-phati, und...

    Text Solution

    |

  4. A small block of mass M moves on a frictionless surface of an incline...

    Text Solution

    |

  5. A small block of mass M moves on a frictionless surface of an incline...

    Text Solution

    |

  6. A small block of mass M moves on a frictionless surface of an incline...

    Text Solution

    |

  7. If the resultant of all the external forces acting on a system of part...

    Text Solution

    |

  8. Look at the drawing given in the figure which has been drawn with ink ...

    Text Solution

    |

  9. Two small particles of equal masses stant moving in opposite directio...

    Text Solution

    |

  10. There object A ,B and C are kept is a straing line a fritionlas horize...

    Text Solution

    |

  11. A point mass of 1 kg collides elastically with a stationary point mass...

    Text Solution

    |

  12. A ball of mass 0.2 kg rests on a vertical post of height 5 m. A bullet...

    Text Solution

    |

  13. A particle of mass m is projected from the ground with an initial spee...

    Text Solution

    |

  14. A pulse of light of duration 100ns is absorbed completely by a small o...

    Text Solution

    |

  15. A tennis ball dropped on a barizoontal smooth surface , it because bac...

    Text Solution

    |

  16. A block of mass M has a circular cut with a frictionless surface as sh...

    Text Solution

    |

  17. A flat plate is moving normal to its plane through a gas under the act...

    Text Solution

    |

  18. Consider regular polygons with number of sides n = 3, 4, 5 ...... as s...

    Text Solution

    |

  19. A spring-block system is resting on a frictionless floor as shown in t...

    Text Solution

    |

  20. A small particle of mass m moving inside a heavy, hollow and straight ...

    Text Solution

    |