Home
Class 11
PHYSICS
Two identical particles move towards eac...

Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is

A

v

B

`v//3`

C

`v//2`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
C

`v_(cm) = (m(2v) + m(-v))/(m + m) = (v)/(2)`
Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS

    ALLEN|Exercise EXERCISE-V B|19 Videos
  • CENTRE OF MASS

    ALLEN|Exercise EXERCISE-IV B|14 Videos
  • BASIC MATHEMATICS USED IN PHYSICS &VECTORS

    ALLEN|Exercise EXERCISE-IV ASSERTION & REASON|11 Videos
  • ELASTICITY, SURFACE TENSION AND FLUID MECHANICS

    ALLEN|Exercise Exercise 5 B (Integer Type Questions)|3 Videos

Similar Questions

Explore conceptually related problems

Two bodies of masses 5kg and 3kg are moving towards each other with 2ms^(-1) and 4ms^(-1) respectively. Then velocity of centre of mass is

Two particles initially at rest move towards each other due to internal forces. Find the velocity of centre of mass when velocity of one particle is v and that of the other is 2v

A body of mass 20 kg is moving with a velocity of 2v and another body of mass 10 kg is moving with velocity V along same direction. The velocity of their centre of mass is

Velocity of sound is v. Source and observer move towards each other with velocities V_(s) and V_(0) respectively. Wind is blowing with a velocity v_(m) in the direction opposite to the propagation of sound, n is the frequency of the sound. The apparent frequency of the sound heard by the observer is :-

If an alpha particle and a deuteron move with velocity v and 2v respectively, the ratio of their de-Broglie wave length will be ……….

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

ALLEN-CENTRE OF MASS-EXERCISE-V A
  1. Two identical particles move towards each other with velocity 2v and v...

    Text Solution

    |

  2. Consider the following two statements: A. Linear momentum of a syste...

    Text Solution

    |

  3. Two spherical bodies of mass M and 5M & radii R & 2R respectively are ...

    Text Solution

    |

  4. A body A of mass M while falling wertically downwards under gravity br...

    Text Solution

    |

  5. The block of mass M moving on the frictionless horizontal surface col...

    Text Solution

    |

  6. A mass 'm' moves with a velocity 'v' and collides inelastieally with a...

    Text Solution

    |

  7. A 'T' shaped object with dimensions shown in the figure, is lying on a...

    Text Solution

    |

  8. A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg an...

    Text Solution

    |

  9. Consider a two particle system with particles having masses m1 and m2 ...

    Text Solution

    |

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

    Text Solution

    |

  11. A block of mass 0.50kg is moving with a speed of 2.00m//s on a smooth ...

    Text Solution

    |

  12. A thin rod of length 6 m is lying along the x-axis with its ends at x ...

    Text Solution

    |

  13. Consider a rubber ball freely falling from a height h = 4.9 m onto a ...

    Text Solution

    |

  14. Statement -1: Two particles moving in the same direction do not lose a...

    Text Solution

    |

  15. This question has statement I and statement II. Of the four choices gi...

    Text Solution

    |

  16. Distance of the centre of mass of a solid uniform cone from its vertex...

    Text Solution

    |

  17. A particle of mass m moving in the x direction with speed 2v is hit by...

    Text Solution

    |

  18. A uniform thin rod AB of length L has linear mass density mu(x) = a + ...

    Text Solution

    |

  19. A large number (n) of identical beads, each of mass m and radius r are...

    Text Solution

    |

  20. In the figure shown ABC is a uniform wire. If centre of mass of wire l...

    Text Solution

    |