Home
Class 11
PHYSICS
A solid cylinder of mass 20 kg rotates a...

A solid cylinder of mass 20 kg rotates about its axis with angular speed 100 rad `s^(-1)`. The radius of the cylinder is 0.25 m. What is the kinetic energy associated with the rotation of the cylinder? What is the magnitude of angular momentum of the cylinder about its axis?

A

`3125 J`

B

`3025 J`

C

`325 J`

D

`25 J`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • APPENDICES

    AAKASH SERIES|Exercise SYSTEM OF PARTICLES AND ROTATIONAL MOTION (ROLLING MOTION)|9 Videos
  • APPENDICES

    AAKASH SERIES|Exercise SYSTEM OF PARTICLES AND ROTATIONAL MOTION (EQUILIBRIUM OF BODY & PARALLEL FORCES)|6 Videos
  • APPENDICES

    AAKASH SERIES|Exercise SYSTEM OF PARTICLES AND ROTATIONAL MOTION (CONSERVATION OF ANGULAR MOMENTUM)|7 Videos
  • CALORIMETRY

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II) (LECTURE SHEET (ADVANCED)(Matrix Type Questions)|1 Videos

Similar Questions

Explore conceptually related problems

A uniform cylinder of radius 1 m, mass 1 kg spins about its axis with an angular velocity 20 rad/s. At certain moment, the cylinder is placed into a corner as shown in the figure. The coefficient of friction between the horizontal wall and the cylinder is mu , whereas the vertical wall is frictionless. If the number of rounds made by the cylinder is 5 before it stops, then the value of mu is (acceleration due to gravity, g = 10 m//s^2 )

If the K.E. of a rotating body about an axis is decreased by 36% , its angular momentum about that axis

AAKASH SERIES-APPENDICES -SYSTEM OF PARTICLES AND ROTATIONAL MOTION (ROTATIONAL DYNAMICS)
  1. A solid cylinder of mass 20 kg rotates about its axis with angular spe...

    Text Solution

    |

  2. A circular disc is rotating about its own axis at a uniform angular ve...

    Text Solution

    |

  3. A constant power is supplied to a rotating disc. The relationship of a...

    Text Solution

    |

  4. Reel of thread in the form of solid cylinder is allowed to unroll by h...

    Text Solution

    |

  5. A cylinder of mass M and radius R starts falling under gravity at t = ...

    Text Solution

    |

  6. A particle performs uniform circular motion with an angular momentum L...

    Text Solution

    |

  7. A particle of mass 2 kg is on a smooth horizontal table and moves in a...

    Text Solution

    |

  8. A wheel of radius 0.4 m can rotated freely about its axis as shown in ...

    Text Solution

    |

  9. A wheel of radius 20 cm can rotate about its centre. A string is wrapp...

    Text Solution

    |

  10. A uniform rod of length I and mass m is suspended by two vertical inex...

    Text Solution

    |

  11. A heavy wheel of radius 20 cm and weight 10kg is to be dragged over a ...

    Text Solution

    |

  12. A cubical block of side .L. rests on a rough horizontal surface with c...

    Text Solution

    |

  13. As shown in figure, a stick half of which is made of wood and other ha...

    Text Solution

    |

  14. Same torque is applied on a solid cylinder and solid sphere with same ...

    Text Solution

    |

  15. A bullet of mass 10 g and speed 500 m/s is fired into a door and gets ...

    Text Solution

    |

  16. A particle P is moving uniformly along a straight line XX with a speed...

    Text Solution

    |

  17. A rod of length / is held vertically stationary with its lower end loc...

    Text Solution

    |

  18. A string is wrapped around a wheel of radius .r.. The axis of the whee...

    Text Solution

    |

  19. A disc rotating with an angular velocity omega(0). A constant retardin...

    Text Solution

    |

  20. An equilateral prism of mass m rests on a rough horizontal surface wit...

    Text Solution

    |

  21. A cube of mass.m. and side .a. moving along with a constant speed v0 a...

    Text Solution

    |