Home
Class 11
PHYSICS
Calculate the KE of rotation of a circul...

Calculate the `KE` of rotation of a circular disc of mass `1 kg` and radius `0.2 m` rotating about an axis passing through its centre and perpendicular to its plane. The disc is making `30//pi` rotations per minute.

Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    SL ARORA|Exercise Problem|24 Videos
  • ROTATIONAL MOTION

    SL ARORA|Exercise Problem for self practice|90 Videos
  • PROPERTIES OF SOLIDS

    SL ARORA|Exercise All Questions|97 Videos
  • System of particles & rotational Motion

    SL ARORA|Exercise EXERCISE|353 Videos

Similar Questions

Explore conceptually related problems

Calculate the moment of Inertia of a semicircular disc of mass M and radius R about an axis passing through its centre and perpendicular to its plane.

The moment of inertia of a copper disc, rotating about an axis passing through its centre and perpendicular to its plane

The radius of gyration of a disc of mass 50 g and radius 2.5 cm, about an axis passing through its centre of gravity and perpendicular to the plane is

The diameter of a thin circular disc of mass 2 kg is 0.2 m. Its moment of inertia about an axis passing through the edge and perpendicular to the plane of the disc is

A circular disc of mass 2 kg and radius 0.1 m is rotating at an angular speed of 2 rad/s, about an axis passing through its centre and perpendicular to its plane. What is its rotational kinetic energy?

Calculate the moment of inertia of uniform circular disc of mass 500 g, radius 10 cm about : the axis through the centre of the disc and perpendicular to its plane

If a circular concentric hole is made on a disc then about an axis passing through the centre of the disc and perpendicular to its plane

Calculate the ration of radii of gyration of circular ring and a disc of the same radius about the axis passing through their centres and perpendicular to their planes.

A circular disc has a mass of 1kg and radius 40 cm. It is rotating about an axis passing through its centre and perpendicular to its plane with a speed of 10rev/s. The work done in joules in stopping it would be-

SL ARORA-ROTATIONAL MOTION-Problem for self practice
  1. Calculate the KE of rotation of a circular disc of mass 1 kg and radiu...

    Text Solution

    |

  2. The distance between the carbon atom and the oxygen atom in a carbon m...

    Text Solution

    |

  3. Three particles of msses 1.0 kg , , 2.0 kg and 3.0 kg are placed at th...

    Text Solution

    |

  4. Two bodies of masses 10 kg and 2 kg are moving with velocities 2 hat(i...

    Text Solution

    |

  5. Four particles of masses m, m, 2m and 2m are placed at the four corner...

    Text Solution

    |

  6. Three particles of masses 0.50 kg, 1.0 kg and are placed at the corner...

    Text Solution

    |

  7. Four particles of masses m, m, 2m and 2m are placed at the corners of ...

    Text Solution

    |

  8. Two bodies of masses 2 kg and 1 kg are moving along the same line with...

    Text Solution

    |

  9. The mass per unit length (lambda) of a non-uniform rod varies linearly...

    Text Solution

    |

  10. The centre of mass of three particles of masses 1kg, 2 kg and 3kg lies...

    Text Solution

    |

  11. From a square sheet of uniform density , a portion a removed shown sha...

    Text Solution

    |

  12. A 100 g weight is tied at the end of a string and whirled around in ho...

    Text Solution

    |

  13. A gramophone disc rotates at 60 rpm. A coin of mass 18 g is placed at ...

    Text Solution

    |

  14. A string can withstand a tension of 25 N. What is the greatest speed ...

    Text Solution

    |

  15. A ball of mass 100 g is suspended by a string 40 cm long. Keeping the ...

    Text Solution

    |

  16. Find the maximum speed at which a car can take turn round a curve of 3...

    Text Solution

    |

  17. What should be the coefficient of friction between the tyres and the r...

    Text Solution

    |

  18. The mass of a bicycle rider along with the bicycle is 100 kg. he wants...

    Text Solution

    |

  19. A cyclist riding at a speed of 14sqrt(3) ms^(-1) takes a turn around a...

    Text Solution

    |

  20. A cyclist speeding at 6ms^(-1) in a circle of 18 m radius makes an ang...

    Text Solution

    |

  21. A motor cyclist goes round a circular race course of diameter 320 m at...

    Text Solution

    |