Home
Class 11
PHYSICS
A shell in flight explodes into n equal ...

A shell in flight explodes into n equal fragments, k of the fragments reach the ground earlier than the other fragments. The acceleration of their centre of mass subsequently will be

A

g

B

`(n-k)g`

C

`((n-k)g)/(k)`

D

`((n-k))/(n)g`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise EXERCISE-I (Centre of Mass)|40 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise EXERCISE-I (Rotational Motion :)|75 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise EXERCISE - 2|106 Videos

  • SURFACE TENSION

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (PRACTICE SHEET (ADVANCED) INTEGER TYPE QUESTIONS )|8 Videos

  • THERMAL PROPERTIES OF MATTER

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) PRACTICE SHEET (ADVANCED) Integer/Subjective Type Questions|2 Videos
AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-EXERCISE - 3
  1. Two particles of masses 10 kg and 30 kg are lying on a straight line. ...

    Text Solution

    |

  2. Four identical blocks of length L are arranged one over the other as s...

    Text Solution

    |

  3. A shell in flight explodes into n equal fragments, k of the fragments ...

    Text Solution

    |

  4. A uniform square sheet has a side length of 2R. If one of the quadrant...

    Text Solution

    |

  5. Two balls of masses 5m and m have radii 2R and R. Their centre of mass...

    Text Solution

    |

  6. A trolley of mass 360 kg is lying on a horizontal frictionless surface...

    Text Solution

    |

  7. A boat of mass 80 kg is floating on still water. A dog of mass 20 kg o...

    Text Solution

    |

  8. A shell is projected from a level ground with a velocity of 20 m/s at ...

    Text Solution

    |

  9. The centre of mass of a non uniform rod of length L whose mass per uni...

    Text Solution

    |

  10. The density of a non - uniform rod of length 1 m is given by lambda (x...

    Text Solution

    |

  11. A circular disc of diameter d and a square plate of side d are placed ...

    Text Solution

    |

  12. A circular disc of radius R is removed from a bigger circular disc of ...

    Text Solution

    |

  13. A uniform square sheet has a side length of 2R. A circular sheet of ma...

    Text Solution

    |

  14. A square hole is punched out of a circular lemena, the diagonal of the...

    Text Solution

    |

  15. A body of mass .m. is dropped and another body of mass M is projected ...

    Text Solution

    |

  16. A uniformly thick plate in the shape of an arrow head has dimensions a...

    Text Solution

    |

  17. A 60 cm metal rod M(1) is joined to another 100 cm metal rod M(2) to f...

    Text Solution

    |

  18. Four small spheres each of radius .r. and mass .m. are placed with the...

    Text Solution

    |

  19. In a rectangle ABCD, AB = 2l and BC = l. The centre of rectangle is at...

    Text Solution

    |

  20. A disc of mass .m. and radius R has a concentric hole of radius .r.. I...

    Text Solution

    |