Home
Class 12
PHYSICS
A body of mass M starts sliding down on ...

A body of mass M starts sliding down on the inclined plane where the critical angle is `angleACB=30^(@)` as shown in figure. The coefficient of kinetic friction will be

A

`(Mg)/(sqrt(3))`

B

`sqrt(3)Mg`

C

`sqrt(3)`

D

None of these

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-D) (Assertion-Reason Type Questions)|15 Videos

  • LAWS OF MOTION

    AAKASH INSTITUTE|Exercise Assignment (SECTION-B)|44 Videos

  • KINETIC THEORY

    AAKASH INSTITUTE|Exercise EXERCISE (ASSIGNMENT) SECTION - D Assertion - Reason Type Questions|10 Videos

  • MAGNETISM AND MATTER

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION D)|26 Videos

Similar Questions

Explore conceptually related problems

A block of mass m sliding down an inclined at constant speed is initial at a height h shown the ground as shown in the figure above . The coefficient of kinetic friction between the mass and the inclined is mu . If the mass constinues to slide down the inclined at a constant speed how much energy is displaced by friction by the time the mass reaches the bottom of the incline?

A block of mass 1 kg slides down on a rough inclined plane of inclination 60^(@) starting from its top. If the coefficient of kinetic friction is 0.5 and length of the plane is 1 m , then work done against friction is (Take g=9.8m//s^(2) )

A block slides down an incline of angle 30^(@) with an acceleration of g//4 Find the coefficient of kinetic friction .

A uniform disc of mass m and radius R is rolling up a rough inclined plane which makes an angle of 30^@ with the horizontal. If the coefficients of static and kinetic friction are each equal to mu and the only force acting are gravitational and frictional, then the magnitude of the frictional force acting on the disc is and its direction is .(write up or down) the inclined plane.

A body is sliding down an inclined plane forming an angle 30^(@) with the horizantal. If the coefficient of friction is 0.3 then acceleration of the body is

The time taken by a body to slide down a rough 45^(@) inclined plane is twice that required to slide down a smooth 45^(@) inclined plane. The coefficient of kinetic friction between the object and rough plane is given by

A block has been placed on an inclined plane with the slope angle theta . Block slide down the plane at constant speed. The cofficient of Kinetic friction is equal to

AAKASH INSTITUTE-LAWS OF MOTION-Assignment (SECTION-C)
  1. A mass m moving horizontal (along the x-axis) with velocity v collides...

    Text Solution

    |

  2. An object is moving on a plane surface with uniform velocity 10ms^(-1)...

    Text Solution

    |

  3. A body of mass M starts sliding down on the inclined plane where the c...

    Text Solution

    |

  4. In non inertial frames,Newton's second law of motion is written as ...

    Text Solution

    |

  5. A person holding a rifle (mass of person and rifle together is 100 kg)...

    Text Solution

    |

  6. In a rocket, fuel bums at the rate of 1 kg/s. This fuel is ejected fro...

    Text Solution

    |

  7. A satellite in force-free sweeps stationary interplanetary dust at a r...

    Text Solution

    |

  8. A man fires a bullet of mass 200 g at a speed of 5 m //s . The gun is ...

    Text Solution

    |

  9. A 10 N force is applied on a body produces in it an acceleration of 1 ...

    Text Solution

    |

  10. A force of 6N acts on a body at rest and of mass 1kg. During this time...

    Text Solution

    |

  11. A shell in its flight, explodes into four unequal parts. Which of the ...

    Text Solution

    |

  12. A 5000 kg rocket is set of vertical firing. The exhaust speed is 800" ...

    Text Solution

    |

  13. A bullet is fired from a gun. The force on the bullet is given by F=60...

    Text Solution

    |

  14. A ball of mass 0.25 kg attached to the end of a string of length 1.96 ...

    Text Solution

    |

  15. A mass 1 kg is suspended by a thread. It is (i) lifted up with an ac...

    Text Solution

    |

  16. If the force on a rocket moving with a velocity of 300m/s is 345 N, th...

    Text Solution

    |

  17. A 500 kg car takes a round turn of radius 50 m with a velocity of 36...

    Text Solution

    |

  18. Two masses as shown are suspended from a massless pulley. Calculate th...

    Text Solution

    |

  19. A mass of 1 kg is thrown up with a velocity of 100 m/s. After 5 second...

    Text Solution

    |

  20. A man is slipping on a frictionless inclined plane and a bag falls dow...

    Text Solution

    |