Home
Class 11
PHYSICS
Two particles A and B initially at rest,...

 Two particles A and B initially at rest, move towards each other, under mutual force of attraction. At an instance when the speed of A is v and speed of B is 2v, the speed of centre of mass (CM) is

A

`0`

B

`V`

C

`1.5V`

D

`3V`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise PRACTICE EXERCISE|99 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH SERIES|Exercise Exercise-I|143 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

Similar Questions

Explore conceptually related problems

Two particles of masses 4 kg and 6 kg are at rest separated by 20 m. If they move towards each other under mutual force of attraction, the position of the point where they meet is

(A) : Two particles (starting from rest) move towards each other under a mutual force of attraction. The velocity of their c.m is zero. (R ) : Internal forces do not alter the state of motion of c.m.

Two spheres of masses 2M and M are initially at rest at a distance R apart. Due to mutual force of attraction, they approach each other. When they are at separation R/2, the acceleration of the centre of mass of spheres would be

AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Exercise-II
  1. A man of 50kg is standing at one end on a boat of length 25m and mass ...

    Text Solution

    |

  2. Two particles having masses m and 2m are travelling along x-axis on a ...

    Text Solution

    |

  3. Two particles A and B initially at rest, move towards each other, unde...

    Text Solution

    |

  4. A baloon of mass M is stationary in air. It has a ladder on which a ma...

    Text Solution

    |

  5. A woodrn log of mass 120 kg is floating on still water perpendicular t...

    Text Solution

    |

  6. A uniform wire of length L is bent in the form of a circle. The shift ...

    Text Solution

    |

  7. Masses 1 kg, 1.5 kg, 2 kg and M kg are situated at (2, 1, 1) (1, 2, 1)...

    Text Solution

    |

  8. Three identical spheres each of radius R are placed on a horizontal su...

    Text Solution

    |

  9. Two bodies of mases 5kg and 3kg are moving towards each other with 2ms...

    Text Solution

    |

  10. Two particles each of the same mass move due north and due east respec...

    Text Solution

    |

  11. If the distance between the centres of the atoms of potassium and brom...

    Text Solution

    |

  12. The co-ordinates of the centre of mass of the system as shown in figur...

    Text Solution

    |

  13. Two bodies of masses 10 kg and 20 kg are located in x-y plane at (0, 1...

    Text Solution

    |

  14. A uniform disc of diameter R/2 is put over another uniform disc of dia...

    Text Solution

    |

  15. Particles of masses 1 kg and 3 kg at (2i+5j+13 k) m and (-6i+4j-2k)m t...

    Text Solution

    |

  16. Two particles of same mass are projected simultaneously with same spee...

    Text Solution

    |

  17. Six identical particles each of mass m are arranged at the corners of ...

    Text Solution

    |

  18. Three identical rods each of length L and mass m are joined to form a ...

    Text Solution

    |

  19. Four identical particles each of mass 1 kg are arranged at the corners...

    Text Solution

    |

  20. The cross product of the vectors (2i - 3j + 4k) and (I + 4j -5k) is

    Text Solution

    |