Home
Class 11
PHYSICS
An object placed on an inclined plane s...

An object placed on an inclined plane starts sliding when the angle of incline becomes `30^(@)` the coefficent of statyic friction between the object and the plane is

A

`(1)/sqrt(3)`

B

`sqrt(3)`

C

`1/2`

D

`sqrt(3)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
a
`mu = tan 30^(@) = (1)/(sqrt(3))`
Promotional Banner

Topper's Solved these Questions

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (II Very Short Answer Question)|62 Videos

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (III Short Answer Question )|42 Videos

  • LAW OF MOTION

    PREMIERS PUBLISHERS|Exercise EVALUATION (TEXTBOOK QUESTIONS & ANSWERS) (V Numerical Problems)|30 Videos

  • KINETIC THEORY OF GASES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWERS (VI. Conceptual Questions.)|8 Videos

  • MOTION OF SYSTEM OF PARTICLES AND BODIES

    PREMIERS PUBLISHERS|Exercise OTHER IMPORTANT QUESTIONS & ANSWER (NUMERICAL PROBLEMS)|60 Videos

Similar Questions

Explore conceptually related problems

When object begins to slide, the static friction acting on the object attains

A wooden block is kept on a polished wooden plank and the inclination of the plank is gradually increased. It is found that the block starts slipping when the plank makes an angle of 18^@ with the horizontal. However, once started the block can continue with uniform speed if the inclination is reduced to 15^@ . Find the coefficients of static and kinetic friction between the block and the plank.

A block has been placed on an inclined plane with the slope angle theta block slides down the plane at constant speed the coefficient of kinetic friction is equal to

See Fig. A mass of 4 kg rests on a horizontal plane. The plane is gradually inclined until at an angle theta = 15^@ with the horizontal, the mass just begins to slide. What is the coefficient of static friction between the block and the surface ?

A hollow sphere is released from the top of an inlcined plane of inclination theta . A. What should be the minimum coefficientof friction between the shphere and the plane to prevent sliding? B. Find the kinetic energy of the ball as it moves down a length l on the incline if the friction coefficient is half the value calculated in part a.

A mass of 4kg rests on a horizontal plane the plane is gradually inclined unitl at an angle =15 with the horizontal the mass just begins to slide what is the coefficient of static friction bwtween the block and the surface

A block of mass 2 kg rests on a plane inclined at an angle of 30^(@) with the horizontal the coefficient of friction between the block and the surface is 0.7 what will be the frictional force acting on the block

PREMIERS PUBLISHERS-LAW OF MOTION -OTHER IMPORTANT QUESTIONS & ANSWERS (Multiple choice Questions )
  1. Which one of the following statements is a correct statement?

    Text Solution

    |

  2. A 40N force pulls a system of three masses on a horizontal frictionles...

    Text Solution

    |

  3. An object placed on an inclined plane starts sliding when the angle o...

    Text Solution

    |

  4. A boy presses a book against the front wall such that the book do ...

    Text Solution

    |

  5. A cyclist travels with a speed of 36 km^(-1) if the angle of inclina...

    Text Solution

    |

  6. Identify the correct statement

    Text Solution

    |

  7. A particle revolves round a circular path the acceleration of the pa...

    Text Solution

    |

  8. When milk is churned cream gets separated due to

    Text Solution

    |

  9. Statement 1 represent assertion And statement 2 represents reason whic...

    Text Solution

    |

  10. A body is moving in a circular path with acceleration a if its vel...

    Text Solution

    |

  11. Assertion : on a rainy day it is difficult to drive a bus at high spee...

    Text Solution

    |

  12. For the following situation which of the following is correct When ...

    Text Solution

    |

  13. Assertion : Usage of ball bearing between two moving parts in a machin...

    Text Solution

    |

  14. Which one of the following statement is correct for the following sit...

    Text Solution

    |

  15. Which of the following is a correct statement when a car is moving a...

    Text Solution

    |

  16. When a stone tied to the end of a string whireled in a circular pat...

    Text Solution

    |

  17. The condition for skidding is

    Text Solution

    |

  18. A body is moving with a constant speed v in a circle of radius r. its ...

    Text Solution

    |

  19. Which one of the following statement is correct for the following sit...

    Text Solution

    |

  20. Select the odd man out from the following statement

    Text Solution

    |