Home
Class 12
PHYSICS
A particle is projected along the line o...

A particle is projected along the line of greatest slope up a rough inclined plane at an angle of `45^(@)` with the horizontal. If the coefficient of friction is `(1)/(2)` then the retardation is :

A

`(g)/(2)`

B

`(g)/(2sqrt2)`

C

`(3g)/(2sqrt2)`

D

`(g)/(sqrt2)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • LAWS OF MOTION

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTIONS|7 Videos
  • HEAT AND THERMODYNAMICS

    MODERN PUBLICATION|Exercise Recent Competitve Questions|17 Videos
  • MAGNETOSTATICS

    MODERN PUBLICATION|Exercise RECENT COMPETITIVE QUESTION|5 Videos

Similar Questions

Explore conceptually related problems

A body of mass 2 kg rests on a rough inclined plane making an angle of 30^(@) with the horizontal. The coefficient of static friction between the block and the plane is 0.7. The frictional force on the block is :

A block rests on a rough inclined plane making an angle of 30 ^@ with the horizontal . The coefficient of static friction between the block and the plane is 0.8 If the frictional force on the block is 10 N the mass of the block is " "(g=10 ms ^(-2))

A block of weight 200 N is pulled along a rough hori zontal surface at constant speed by a force 100 N acting at an angle 30^(@) above the horizontal. The coefficient of kinetic friction between the block and the surface is :

A block slides down a rough inclined plane of inclination 45^(@) . If the coefficent of kinetic friction is 0.5 , find the acceleration of the sliding block . (g=10ms^(-2)) .

A body slides down from rest along a smooth inclined plane making an angle of 45^(@) with the horizontal and takes time 'Y' to slide down the whole length of the plane. If the plane surface is rough the same body takes n.t time to slide down same length of the plane where n is a number greater than one. What is the value of coefficient of friction between the body and rough plane surface?

A block takes n times as much time to slide down a rough incline of 45^(@) as it takes to slide down a perfectly smooth 45^(@) incline. Coefficient of kinetic friction is :

A straight line L through the point (3, -2) is inclined at an angle 60^(@) to the line sqrt(3)x+y=1 . If L also intersects the x-axis, then the equation of L is :

MODERN PUBLICATION-LAWS OF MOTION-Revision test
  1. An object is placed on the surface of smooth inclined plane of inclina...

    Text Solution

    |

  2. Three concurrent forces of the same magnitude are in equilibrium. What...

    Text Solution

    |

  3. A particle is projected along the line of greatest slope up a rough in...

    Text Solution

    |

  4. A mass of 1 kg is suspended by a thread. It is : (i) lifted up with an...

    Text Solution

    |

  5. A long horizontal rod has a bead which can slide along its length, and...

    Text Solution

    |

  6. A cart is moving with a velocity 20 m/s. Sand is being dropped into th...

    Text Solution

    |

  7. The mass of block A is 100 kg and that of block B is 200 kg. The coeff...

    Text Solution

    |

  8. A body of weight 64 N' is pushed with justs enough force to start it m...

    Text Solution

    |

  9. The resultant of two forces, one double the other in magnitude, is per...

    Text Solution

    |

  10. A cylinder rolls up an inclined plane, reaches some height, and then r...

    Text Solution

    |

  11. A block of weight 200 N is pulled along a rough hori zontal surface at...

    Text Solution

    |

  12. A force vecF = 6t^(2)hat i +4thatj is acting on a particle of mass 3 k...

    Text Solution

    |

  13. A 10 kg box is placed on a surface. Coefficient of friction between su...

    Text Solution

    |

  14. A boat is travelling on a river with a speed of 3m/sec. The force on t...

    Text Solution

    |

  15. A constant force acts on a body of mass 0.9 kg at rest for 10s. If the...

    Text Solution

    |

  16. A rope of length 5m, is kept on frictionless surface and a force of 5N...

    Text Solution

    |

  17. A rocket of mass 5000 kg is to be projected vertically.The gases are e...

    Text Solution

    |

  18. In the above question, if the rocket is to be launched with accelerati...

    Text Solution

    |

  19. The ratio of the weight of the man in stationary lift and in a life ac...

    Text Solution

    |

  20. A particle moves so that it acceleration is always twice its velocity....

    Text Solution

    |