Home
Class 11
PHYSICS
A block of mass 4kg rests on a rough hor...

A block of mass 4kg rests on a rough horizontal plane. The plane is gradually inclined until at an angle `theta=60^(@)` , with the vertical, the mass just begins to side. What is the coefficient of static friction between the block and the plane?

Promotional Banner

Topper's Solved these Questions

  • Laws of Motion

    SL ARORA|Exercise Exercise|627 Videos
  • Kinetic Theory of gases

    SL ARORA|Exercise Example|47 Videos
  • LAWS OF MOTION : FRICTION

    SL ARORA|Exercise Self Practice|95 Videos

Similar Questions

Explore conceptually related problems

A mass of 4 kg rest on a horizontal plane . The plane is gradually inclined until an angle 0 = 15^(@) with the horizontal and the mass just begins to slide . What is the coefficient of static friction between the block and the surface ?

A mass of 4 kg rests on a horizontal plane. When the plane is gradually inclined to an angle 0 -15° with the horizontal, the mass just begins to slide. What is the coefficient of static friction between the block and the surface? [Given, tan 15° = 0.2679)

A block of mass 5 kg rests on a inclined plane at an angle of 30^(@) with the horizontal. If the block just begins to slide, then what is the coefficient of static friction between the block and the surface?

A block is stationary on an inclined plane If the coefficient of friction between the block and the plane is mu then .

A block of mass m lying on a rough horizontal plane is acted upon by a horizontal force P and another force Q inclined at an angle theta to the vertical. The minimum value of coefficient of friction of friction between the block and the surface for which the block will remain in equilibrium is

A block of mass 5 kg is placed on a rough inclined plane. The inclination of the plane is gradually increased till the block just begins to slide down. The inclination of the plane is than 3 in 5. The coefficient of friction between the block and the plane is (Take, g = 10m//s^(2) )

A box of mass 4kg rests upon an inclined plane This inclination is gradually incresed till the box starts sliding down the plane. At this stage slope of the plane is 1 in 3 Find coefficient of friction between the box and the plane What force applied to the box parallel to the plane will just make the box move up the plane ?

SL ARORA-Laws of Motion-Exercise
  1. Explain that static friction is a self adjusting force .

    Text Solution

    |

  2. Friction is a necessary evil. Explain.

    Text Solution

    |

  3. A block of mass 4kg rests on a rough horizontal plane. The plane is gr...

    Text Solution

    |

  4. A block of mass m slides over a smooth wedge of mass M which is placed...

    Text Solution

    |

  5. Why does a cyclist lean to one side while going along a curve ? In wha...

    Text Solution

    |

  6. Obtain expression of energy of a particle at dfferent positions in the...

    Text Solution

    |

  7. Which law of Newton defines an 'inertial frame of reference' ? .

    Text Solution

    |

  8. What is inertia ? Discuss its types giving one example in each case.

    Text Solution

    |

  9. Newton's second law of motion is

    Text Solution

    |

  10. Define absolute and gravitational units of force state relation betwee...

    Text Solution

    |

  11. State Newton's Second law of motion. Derive a mathematical formula to ...

    Text Solution

    |

  12. State Newton's third law of motion. Derive the law of conservation of ...

    Text Solution

    |

  13. Why does a gun recoil on firing? Obtain an expression for recoil veloc...

    Text Solution

    |

  14. Name a varying mass system Drive the expressions the (i) for the veloc...

    Text Solution

    |

  15. Two masses M and m are connected at the two ends of an inextensible st...

    Text Solution

    |

  16. Is impulse a scalar or vector quantity ? Write its SI unit.

    Text Solution

    |

  17. State and establish impulse-momentum theorem.

    Text Solution

    |

  18. Explain the term impulse Show that impulse of a variable force is equa...

    Text Solution

    |

  19. What is friction ?

    Text Solution

    |

  20. Define coefficient of friction and angle of friction and hence derive ...

    Text Solution

    |