Home
Class 11
PHYSICS
A disc of mass 5 kg and radius 50 cm rol...

A disc of mass 5 kg and radius 50 cm rolls on the ground at the rate of `10 ms^(-1)`. Calculate the K.E. of the disc.

Text Solution

Verified by Experts

The correct Answer is:
375 J
Promotional Banner

Topper's Solved these Questions

  • ROTATIONAL MOTION

    SL ARORA|Exercise Problem|24 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

A circuit disc of mass 49 kg and of radius 50 cm is mounted axially and made to rotate. Calculate the K.E.. It possesses, when executing 120 rpm

A uniform disc of mass 500 kg and radius 2 metres is rotating at the rate of 600 rpm. What is the torque required to rotate the disc in the opposite direction with the same speed in a time of 100 seconds?

A circular disc of mass 2 kg and radius 10 cm rolls without slipping with a speed 2 m/s. The total kinetic energy of disc is

A disc of mass 4 kg and of radius 1 m rolls on a horizontal surface without slipping such that the velocity of its centre of mass is 10" cm sec"^(-1) , Its rotatonal kinetic energy is

Araindrop of mass 1 . 00 g falling from a height of 1 km hits the ground with a speed of 50 m s"^(-1) . Calculate (a) the loss of the drop . (b) the gain in K.E of the drop (c ) Is the gain in K.E equal to loss of P.E ? If not why ? Take g = 10 "ms"^(-2) .

A circular disc of mass 0.41 kg and radius 10 m rolls without slipping with a velocity of 2 m/s. The total kinetic energy of disc is

A solid disc of mass 1kg and radius 10cm is rotating at the rate of 240 rpm.The torque required to stop it in 4 pi revolutions is?

SL ARORA-ROTATIONAL MOTION-Problem for self practice
  1. A flywheel of mass 500 kg and diameter 1 m makes 500 rpm. Assuming the...

    Text Solution

    |

  2. A rod revlving 60 times in a minute about an axis passing through an e...

    Text Solution

    |

  3. A disc of mass 5 kg and radius 50 cm rolls on the ground at the rate o...

    Text Solution

    |

  4. A disc of mass 100 g is rolling without slipping on a horizontal surfa...

    Text Solution

    |

  5. A solid sphere of mass 0.1 kg and radius 2.5 cm rolls without sliding ...

    Text Solution

    |

  6. A thin metal hoop of radius 0.25 m and mass 2 kg stars from rest and r...

    Text Solution

    |

  7. The earth has a mass of 6 xx 10^(24) kg and a radius of 6.4 xx 10^(6)m...

    Text Solution

    |

  8. The moment of inertia of a flywheel is 4 kg m^(2). What angular accele...

    Text Solution

    |

  9. The moment of inertia of a body is 2.5 kg m^(2). Calculate the torque ...

    Text Solution

    |

  10. A grindstone has a moment of inertia of 50 kg m^(2). A constant couple...

    Text Solution

    |

  11. A flywheel of moment of inertia 10^(7) g cm^(2) is rotating at a speed...

    Text Solution

    |

  12. If a constant torque of 500 Nm turns a wheel of moment of inertia 100 ...

    Text Solution

    |

  13. A sphere of mass 2 kg and radius 5 cm is rotating at the rate of 300 r...

    Text Solution

    |

  14. Determine the angular momentum of a car of mass 1500 kg moving in a ci...

    Text Solution

    |

  15. A body of mass 1.0 kg is rotaing on a circular path of diameter 2.0 m ...

    Text Solution

    |

  16. Mass of an electron is 9.0xx10^(-31) kg. It revolves around the nucleu...

    Text Solution

    |

  17. A circular ring of diameter 40 cm and mass 1 kg rotating about an axis...

    Text Solution

    |

  18. An ice skater spins with arms outstreched at 1.9 rps. Her moment of in...

    Text Solution

    |

  19. A mass of 2 kg is rotating on a circular path of radius 0.8 m with ang...

    Text Solution

    |

  20. A ball tied to a string takes us to complete revolution along a horizo...

    Text Solution

    |