Home
Class 11
PHYSICS
Friction is a necessary evil. Explain....

Friction is a necessary evil. Explain.

Promotional Banner

Topper's Solved these Questions

  • Force

    MODERN PUBLICATION|Exercise Exercise|137 Videos
  • Gravitational potential and potential energy

    MODERN PUBLICATION|Exercise Exercise|17 Videos

Similar Questions

Explore conceptually related problems

Transpiration is a necessary evil in plants . Explain.

Who said that "transpiration is a necessary evil"?

Why is food necessary ?

Explain why friction is necessary to make the disc roll in the direction indicated. Given the direction of friction force at B, and the sense of frictional torque, before perfect rolling begins.

Polishing beyond certain limit may increase friction between the surfaces. Explain.

MODERN PUBLICATION-Friction-Exercise
  1. Friction is a necessary evil. Explain.

    Text Solution

    |

  2. Discuss the advantage and disadvantage of friction.

    Text Solution

    |

  3. Friction is a necessary evil. Explain.

    Text Solution

    |

  4. What are factors on which the force of friction depends ? How does lub...

    Text Solution

    |

  5. What are the methods of reducing friction?/

    Text Solution

    |

  6. Give old and modern views of the cause of friction.

    Text Solution

    |

  7. What is friction?

    Text Solution

    |

  8. Rolling friction is:

    Text Solution

    |

  9. What is friction?

    Text Solution

    |

  10. State the laws of friction.

    Text Solution

    |

  11. What do you mean by ball bearings ? How sliding friction is converted ...

    Text Solution

    |

  12. A ball rolled on ice with a velocity of 14ms^(-1) comes to rest after ...

    Text Solution

    |

  13. The coefficient of friction between a horizontal surface and a moving ...

    Text Solution

    |

  14. An automobile is moving on a horizontal road with a speed v. If the co...

    Text Solution

    |

  15. A suitcase us gently dropped on a coneyor belt moving at 3 m//.If th ...

    Text Solution

    |

  16. If the coeficient of friction is 0.6, calculate the angle of friction.

    Text Solution

    |

  17. A force of 5 kgfis just sufficient to pull a block of weight 8 kgf ove...

    Text Solution

    |

  18. A cubical block rests on an inclined plane with four edges horizontal....

    Text Solution

    |

  19. A mass of 4 kg rests on a horizontal plane. The plane is gradually inc...

    Text Solution

    |

  20. A mass of 100 kg is resting on a rough inclined plane of angle 30^@. I...

    Text Solution

    |