Home
Class 11
PHYSICS
A sphere cannot roll on...

A sphere cannot roll on

A

a smooth inclined surface

B

a smooth horizontal surface

C

a rough inclined surface

D

a rough horizontal surface

Text Solution

Verified by Experts

The correct Answer is:
B
On inclined surface gravitationl force provides torque. On rough surface friction provides torque for rolling but on horizontal smooth surface we need external force to create torque.
Promotional Banner

Topper's Solved these Questions

  • ROTATION

    DC PANDEY|Exercise (B) Chapter Exercises|25 Videos

  • ROTATION

    DC PANDEY|Exercise (C) Chapter Exercises|39 Videos

  • ROTATION

    DC PANDEY|Exercise Check point 9.3|15 Videos

  • RAY OPTICS

    DC PANDEY|Exercise Integer type q.|15 Videos

  • ROTATIONAL MECHANICS

    DC PANDEY|Exercise Subjective Questions|2 Videos

Similar Questions

Explore conceptually related problems

Only under gravity and some initial impulsea sphere cannot roll without sliding on :

Assertion : A solid sphere cannot roll without slipping on smooth horizontal surface Reason : If the sphere is left free on smooth inclined surface. It cannot roll without slipping.

A solid sphere rolling on a rough horizontal surface. Acceleration of contact point is zero. A solid sphere can roll on the smooth surface.

A sphere is rolling on a horizontal surface without slipping. The ratio of the rotational K.E. to the total kinetic energy of the sphere is

A solid sphere rolls on a smooth horizontal surface at 10 m//s and then rolls up a smooth inclined plane of inclination 30^@ with horizontal. The mass of the sphere is 2 kg . Find the height attained by the sphere before it stops (in m ).

A solid sphere is rolled on a rough surface and it is found that sphere stops after some time.

A sphere rolls down on an inclined plane of inclination q. What is the acceleration as the sphere reaches bottom?

A sphere rolls down on an inclied plane of inclination theta . What is the acceleration as the sphere reaches bottom ?

DC PANDEY-ROTATION-(A) Chapter Exercises
  1. When a body is projected at an angle with the horizontal in the unifor...

    Text Solution

    |

  2. A disc of radius R rolls on a rough horizontal surface. The distance c...

    Text Solution

    |

  3. A uniform rod of mass 2 kg and length 1 m lies on a smooth horizontal ...

    Text Solution

    |

  4. A particle P is moving in a circle of radius a with a uniform speed u,...

    Text Solution

    |

  5. For the uniform T shaped structure, with mass 3M, moment of inertia ab...

    Text Solution

    |

  6. A wheel comprises a ring of radius R and mass M and three spokes of ma...

    Text Solution

    |

  7. A square is made by joining four rods each of mass M and length L. Its...

    Text Solution

    |

  8. A solid homogeneous sphere is moving on a rough horizontal surface, pa...

    Text Solution

    |

  9. A sphere cannot roll on

    Text Solution

    |

  10. A thin bar of mass m and length l is free to rotate about a fixed hori...

    Text Solution

    |

  11. A disc is free to rotate about a smooth horizontal axis passing throug...

    Text Solution

    |

  12. A rod of length L whose lower end is fixed along the horizontal plane ...

    Text Solution

    |

  13. A solid sphere and a solid cylinder of same mass are rolled down on tw...

    Text Solution

    |

  14. A solid sphere of mass 2 kg rolls up a 30^(@) incline with an initial ...

    Text Solution

    |

  15. The figure shows a uniform rod lying along the X-axis. The locus of al...

    Text Solution

    |

  16. A cord is wound around the circumference of wheel of radius r. The axi...

    Text Solution

    |

  17. A solid sphere rolls without slipping and presses a spring of spring c...

    Text Solution

    |

  18. Two uniform rods of equal length but different masses are rigidly join...

    Text Solution

    |

  19. A portion of a ring of radius R has been removed as shown in figure. M...

    Text Solution

    |

  20. The moment of inertia of a semicircular ring of mass M and radius R ab...

    Text Solution

    |