Home
Class 12
PHYSICS
Three particles are connected by light, ...

Three particles are connected by light, right rods lying along the y-axis. If the system rotates about the x-axis with an angular speed of 2 rad/s, the M.I. of the system is

A

`46 kg - m^2`

B

` 92 kg - m^2`

C

`184 kg - m^2`

D

`276 kg - m^2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    MOTION|Exercise Exercise - 3 ( Section-A )|46 Videos

  • ROTATIONAL MOTION

    MOTION|Exercise Exercise - 3 ( Section-B )|24 Videos

  • ROTATIONAL MOTION

    MOTION|Exercise Exercise - 1|90 Videos

  • RAY OPTICS

    MOTION|Exercise Exercise-4|38 Videos

  • SEMI CONDUCTOR AND LOGIC GATES

    MOTION|Exercise EXERCISE 3|34 Videos

Similar Questions

Explore conceptually related problems

Three particles are situated on a light and rigid rod placed along Y-axis. If the system rotates about X-axis, the M.I. of the system is :

Two particles of masses m_1 and m_2 are joined y a light rigid rod of length r. The system rotates at an angular speed omega about an axis through the centre of mass of the systemand perpendicular to the rod. Shwo thast the angular momentum of the system is L=mur^2omega where mu is the reduced mass of the system defined as mu=(m_1m_2)/(m_1+m_2)

An solid cylinder of mass 20 kg and radius 20 cm rotates about its axis with a angular speed 100 rad s^-1 . The angular momentum of the cylinder about its axis is.

A bicycle wheel (ring) of mass 1kg and radius 2m is attached at the end of a long rod of mass 1kg and length 3m, with the axis of wheel perpendicular to the rod. The rod is rotating counter clockwise as seen from above about its other end with an angular speed 0.5 rad/s. If wheel is also rotating about its axis with same angular speed in counter clock wise sense as seen from above. Find angular momentum of the system (in kg-m/s) about the axis passing through one end of rod. (Neglect mass of spokes and mass of rod connecting end of length 3m and centre of ring).

Two point masses of 2kg and 10 kg are connected by a weightless rod of length 1.2 m. Calculate the M.I. of the system about axis pasing through the centre of mass and perpendicular to this system.

A body of mass 2 kg and radius of gyration 0.5 m is rotating about an axis. If its angular speed is 2 rad/s, then the angular momentum of the body will be

a body of mass 10 kg and radius of gyration 0.1 m is rotating about an axis. If angular speed is 10 rad/s, then angular momentum will be:

Two small balls A and B each of mass m, are attched erighdly to the ends of a light rod of length d. The structure rotates about the perpendicular bisector of the rod at an angular speed omega . Calculate the angular momentum of the individual balls and of the system about the axis of rotation.

Four particles of mass m are connected by massless rods to form a rectangle-of sides 2a and 2b as shown. The assembly, rotates about an axis in the plane of the figure through the centre. Find the moment of inertia about the axis:,

MOTION-ROTATIONAL MOTION -Exercise - 2
  1. Two masses of 3kg and 5kg are placed at 20cm and 70cm marks respective...

    Text Solution

    |

  2. Four rings each of mass M and radius R are arranged as shown in the fi...

    Text Solution

    |

  3. Three particles are connected by light, right rods lying along the y-a...

    Text Solution

    |

  4. A smooth uniform rod of length L and mass M has two identical beads of...

    Text Solution

    |

  5. Two bodies with moment of inertia I1 and I2 (I1 gt I2) have equal angu...

    Text Solution

    |

  6. A rigid body of mass m rotates with angular velocity omega about an ax...

    Text Solution

    |

  7. A disc of mass 25kg and diameter 0.4m is rotating about its axis at 24...

    Text Solution

    |

  8. A pendulum of length l=1m is released from theta(0)=60^(@) . The rate ...

    Text Solution

    |

  9. Starting from rest, a particle rotates in a circle of radius R  2 m w...

    Text Solution

    |

  10. A small ball of radius r rolls without sliding in a big hemispherical ...

    Text Solution

    |

  11. A particle of mass 2 mg located at the position (hat i+ hat k) m has a...

    Text Solution

    |

  12. A sphere is rolled on a rough horizontal surface. It gradually slows ...

    Text Solution

    |

  13. A sphere of mass M rolls without slipping on the inclined plane of inc...

    Text Solution

    |

  14. The maximum and minimum distance of a comet from the sun are 14 xx 10...

    Text Solution

    |

  15. A solid sphere is rolling down on inclined plane from rest and a recta...

    Text Solution

    |

  16. An ant is sitting at the edge of a rotating disc. If the ant reaches t...

    Text Solution

    |

  17. The moment of inertia of a ring of mass M and radius R about PQ axis w...

    Text Solution

    |

  18. The moment of inertia of a thin square plate ABCD of uniform thickness...

    Text Solution

    |

  19. When a mass is rotating in a plane about a fixed point, its angular mo...

    Text Solution

    |

  20. A ring of mass 10 kg and diameter 0.4 meter is rotating about its geom...

    Text Solution

    |