Home
Class 12
PHYSICS
Two partticles A and B intially at rest ...

Two partticles `A` and `B` intially at rest move towards each other under a mutual force of attraction. The instant at which velocity of `A` is `4v` and velocity of `B` is `2v`, the velocity of centre of mass of the system at that instant will be

A

`v`

B

`2v`

C

`3v`

D

Zero

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - C) Objective Type Questions (More than one option are correct)|29 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - D) Linked Comprehension Type Questions|20 Videos

  • SYSTEM OF PARTICLES AND ROTATIONAL MOTION

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section - A) Objective Type Questions (One option is correct)|62 Videos

  • SEMICONDUCTOR ELECTRONICS: MATERIALS, DEVICES AND SIMPLE CIRCUITS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D (Assertion and reason))|5 Videos

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|21 Videos

Similar Questions

Explore conceptually related problems

Two particles A and B intiallly at rest, move towards each other under a mutual force of attraction. AT the instant when the speed of A is v and the speed of B is 2 v, the speed of the centre of mass of the system is

Two particles A and B, initially at rest, moves towards each other under a mutual force of attraction. At the instant when the speed of A is v and the speed of B is 2 v, the speed of centre of mass is

Two particles A and B initially at rest, move towards each other by mutual force of attraction. At the instant when the speed of A is n and the speed of B is 3n , the speed of the centre of mass of the system 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 particles A and B with particle A having mass m, are moving towards each other under their mutual force of attraction. If their speeds at certain instant are v and 2v respectively, then find the K.E. of the system.

10 Two particles of masses m_(1) and m_(2) initially at rest start moving towards each other under their mutual force of attraction. The speed of the centre of mass at any time t, when they are at a distance r apart, is

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

Two particles of masses 2 kg and 3 kg are at rest separated by 10 m. If they move towards each other under mutual force of attraction, the position of the point where they meet is

Two particles of mass 1 kg and 3 kg move towards each other under their mutual force of attraction. No other force acts on them. When the relative velocity of approach of the two particles is 2m/s, their centre of mass has a velocity of 0.5 m/s. When the relative velocity of approach becomes 3m/s, the velocity of the centre of mass is 0.75 m/s.

Two particles of mass 1 kg and 3 kg move towards each other under their mutual force of attraction. No other force acts on them. When the relative velocity of approach of the two particles is 2m/s, their centre of mass has a velocity of 0.5 m/s. When the relative velocity of approach becomes 3m/s, the velocity of the centre of mass is 0.75 m/s.

AAKASH INSTITUTE ENGLISH-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Assignment (Section - B) Objective Type Questions (One option is correct)
  1. When a stick of length L mass M intially upright on a fricitionless fl...

    Text Solution

    |

  2. If two particles of masses m(1) and m(2) are projected vertically upwa...

    Text Solution

    |

  3. Two partticles A and B intially at rest move towards each other under ...

    Text Solution

    |

  4. A rod of length 2l is bent as shown in figure. Coordinates of centre o...

    Text Solution

    |

  5. Two particles of equal mass are projected simultaneously with speeds 2...

    Text Solution

    |

  6. A circular plate of diameter 'a' is kept in contact with a square plat...

    Text Solution

    |

  7. A body of mass m is projected from ground for horizontal range R. At t...

    Text Solution

    |

  8. A man of mass 50 kg us standing on a 100 kg plank kept on a fricitonle...

    Text Solution

    |

  9. A man of mass m jumps onto a boat which has a mass M. If the person ha...

    Text Solution

    |

  10. Two smooth prisms of similar right-triangular sections are arranged on...

    Text Solution

    |

  11. Spring Gun Recoil A loaded spring gun, initially at rest on a horizo...

    Text Solution

    |

  12. Two blocks of mass 2kg and 5kg are given speed as shown in the figure....

    Text Solution

    |

  13. A ball is allowed to fall from rest on a horizontal floor from a heigh...

    Text Solution

    |

  14. A particle is dropped from rest from a height h(0) on a horizontal flo...

    Text Solution

    |

  15. During collision between the objects.

    Text Solution

    |

  16. A particle of mass m moving with a speed u strikes a smooth horizontal...

    Text Solution

    |

  17. A particle collides with a smooth, surface with speed u at an angle th...

    Text Solution

    |

  18. A particle of mass m strikes a disc of radius R and mass m with a spee...

    Text Solution

    |

  19. Two identical billiard balls are in contact on a table. A third identi...

    Text Solution

    |

  20. Two blocks A and B of mass 2m and m respectively are connected to a ma...

    Text Solution

    |