Home
Class 11
PHYSICS
The velocities of three particles of mas...

The velocities of three particles of masses 20 g, 30 g and 50 g are `10hat`i, `10hatj` and `10hatk` respectively. The velocity of the centre of mass of the three particles is

A

`2hati+3hatj+5hatk`

B

`10(hati+hatj+hatk)`

C

`20hati+30hatj+5hatk`

D

`20hati+30hatj+50hatk`

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 objects of masses 200 g and 500 g possess velocities 10hati ms^(-1) and 3hati+5hatj ms^(-1) respectively. The velocity of their centre of mass in ms^(-1) is

Two bodies of 6 kg and 4 kg masses have their velocity 5hati-2hatj+10hatj and 10hati-2hatj+5hatk respectively. Then, the velocity of their centre of mass is

Two particles of mass 1 kg and 3 kg have position vectors 2hati + 3hatj+4hatk and -2hati+ 3hatj - 4hatk respectively. The centre of mass, has a position vector

AAKASH SERIES-SYSTEM OF PARTICLES AND ROTATIONAL MOTION-Exercise-II
  1. A system consists of two identical particles one particle is at rest a...

    Text Solution

    |

  2. Three identical spheres each of radius .R. are placed touching each ot...

    Text Solution

    |

  3. The velocities of three particles of masses 20 g, 30 g and 50 g are 10...

    Text Solution

    |

  4. A thin uniform rod of length L is bent at its mid point as shown in th...

    Text Solution

    |

  5. Particles of masses m, 2m, 3m ... nm gram are placed on the same line ...

    Text Solution

    |

  6. Four particles, each of mass 1kg, are placed at the corneres of a squa...

    Text Solution

    |

  7. Three identical masses are kept at the corners of an equilateral trian...

    Text Solution

    |

  8. Three particles of masses 8 kg, 4 kg and 4 kg situated at (4,1), (-2,2...

    Text Solution

    |

  9. The mass of a uniform ladder of length 6m is 20kg. A mass 60kg is plac...

    Text Solution

    |

  10. From a sphere of radius 1m, a sphere of radius 0.5m is removed from th...

    Text Solution

    |

  11. A circular plate has a uniform thickness and has a diameter 56cm. A ci...

    Text Solution

    |

  12. A man of 50kg is standing at one end on a boat of length 25m and mass ...

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |

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

    Text Solution

    |