Home
Class 12
PHYSICS
A uniform disc of radius R is put over a...

A uniform disc of radius R is put over another unifrom disc of radius 2R of the same thickness and density. The peripheries of the two discs touch each other. Locate the centre of mass of the system.

Text Solution

Verified by Experts

The correct Answer is:
At R/5 from the centre of the bigger disc towards the centre of the smaller disc.
Promotional Banner

Topper's Solved these Questions

  • CENTRE OF MASS

    MOTION|Exercise Exercise - 3 Level-II|16 Videos

  • CENTRE OF MASS

    MOTION|Exercise Exercise - 4 Level-I|18 Videos

  • CENTRE OF MASS

    MOTION|Exercise Exercise - 2 (Level-II)|28 Videos

  • Capacitance

    MOTION|Exercise EXERCISE -4 LEVEL II|19 Videos

  • CIRCULAR MOTION

    MOTION|Exercise EXERCISE - 4|16 Videos

Similar Questions

Explore conceptually related problems

A disc of radis R is cut out from a larger disc of radius 2R in such a way that the edge of the hole touches the edge of the disc. Locate the centre of mass of the residual disc.

From a uniform disc of radius R , a circular section of radius R//2 is cut out. The centre of the hole is at R//2 from the centre of the original disc. Locate the centre of mass of the resulating flat body.

A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the circumference of the discs coincoid . The centre of mass of the new disc is alphaR from the centre of the bigger disc . the value of alpha is

A circular disc of radius R is removed from a bigger circular disc of radius 2R such that the cirucmferences of the discs coincide. The centre of mass of the new disc is alpha/R from the center of the bigger disc. The value of alpha is

A circular disc of radius R is removed from a bigger circular dise of radius such that the circumferences of the discs coincide. The centre of mass of the new disc is alphaR from the centre of the bigger disc. The value of a is:

A disc of radius a/2 is cut out from a uniform disc of radius a as shown in figure . Find the X Coordinate of centre of mass of remaining portion

A circular disc of radius R is removed from a bigger circular disc of radius 2 R such that the circumferences of the discs coincide. The center of mass of new disc is alpha R from the center of the bigger disc. The value of alpha is

MOTION-CENTRE OF MASS-Exercise - 3 Level-I
  1. A thin sheet of metal of uniform thckness is cut into the shape bounde...

    Text Solution

    |

  2. Figure shown a cubical box that has been constructed from uniform meta...

    Text Solution

    |

  3. A uniform disc of radius R is put over another unifrom disc of radius ...

    Text Solution

    |

  4. Find the position of centre of mass of the uniform planner sheet shown...

    Text Solution

    |

  5. A homogeneous plate PQRST is as shown in figure. The centre of mass of...

    Text Solution

    |

  6. Two balls of equal mass are projected upwards simultaneously, one from...

    Text Solution

    |

  7. In the figure shown, when the persons A and B exchange their positions...

    Text Solution

    |

  8. In the figure shown, when the persons A and B exchange their positions...

    Text Solution

    |

  9. In the figure shown, when the persons A and B exchange their positions...

    Text Solution

    |

  10. In the figure shown, when the persons A and B exchange their positions...

    Text Solution

    |

  11. In the figure shown, when the persons A and B exchange their positions...

    Text Solution

    |

  12. In the arrangement shown in Figure, mA=2kg and mB=1kg. String is light...

    Text Solution

    |

  13. A small cube of mass m slides down a circular path of radius R cut int...

    Text Solution

    |

  14. A (trolley + child) of total mass 200 kg is moving with a uniform spee...

    Text Solution

    |

  15. A ball B is suspended from a string of length l attached to a cart A, ...

    Text Solution

    |

  16. A ball B is suspended from a string of length l attached to a cart A, ...

    Text Solution

    |

  17. A wedge of mass M = 2m rests on a smooth horizontal plane. A small blo...

    Text Solution

    |

  18. A small sphere of radius r = 2cm and mass ‘m’ is placed on a big spher...

    Text Solution

    |

  19. In the figure shown the spring is compressed by 'x(0)' and released . ...

    Text Solution

    |

  20. In the figure shown the spring is compressed by 'x(0)' and released . ...

    Text Solution

    |