Home
Class 11
PHYSICS
A block of mass 50 kg can slide on a rou...

A block of mass 50 kg can slide on a rough horizontal surface. The coefficient of friction between the block and the surface is 0.6. The least force of pull acting at an
angle of `30^(@)` to the upwawrd drawn ve3rtical which causes the block to just slide is

A

29.43 N

B

219.6 N

C

21.96 N

D

294.3 N

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • FLUID MECHANICS

    ERRORLESS |Exercise Fluid Mechanics|19 Videos

  • GRAVITATION

    ERRORLESS |Exercise SET|27 Videos

Similar Questions

Explore conceptually related problems

A block of mass M is using on a rough horizontal surface. mu_R is the coefficient of kinetic friction between the block and the surface. What is the net force exerted by the surface on the block?

A rectangular block of mass 5 kg is kept on a horizontal surface . The coefficient of friction between the block and the surface is 0.2 . If a force of 20 N is applied to the block at angle of 30^(@) with the horizontal plane , what is the force of friction on the block ? (Take g = 10 m//s^(2) )

A block of mass 1kg is at rest on a horizontal table. The coeficient of static friction between the block and the table is 0.5 . The magnitude of the force acting upward at an angle of 60^(@) from the horizontal that will just start the block moving is.

A block of mass 6 kg is being pulled by force 24 N as shown . If coefficient of friction between the block and the surface is 0.6 , frictional force acting on the block is :

A block of mass 50 kg slides over a horizontal distance of 1m. If the coefficient of friction between their surface is 0.2, then work done against friction is (take g = 9.8 m//s^(2) ) :

A block of mass M is kept on as rough horizontal surface. The coefficient of static frictionbetween the block and the surface is mu . The block is to be pulled by applying a force to it. What minimum force is needed to slide the block? In which direction should this force act?

A block of mass 1 kg lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is 0.6. If the acceleration of the truck is 5m//s^2 , the frictional force acting on the block is…………newtons.

ERRORLESS -FRICTION-MCQ S
  1. A motorcyclist of mass m is to negotiate a curve of radius r with a sp...

    Text Solution

    |

  2. On a rough horizontal surface, a body of mass 2 kg is given a velocity...

    Text Solution

    |

  3. A block of mass 50 kg can slide on a rough horizontal surface. The coe...

    Text Solution

    |

  4. A body of 10 kg is acted by a force of 129.4 N if g=9.8m//sec^2. The a...

    Text Solution

    |

  5. Assuming the coefficient of friction between the road and tyres of a c...

    Text Solution

    |

  6. Consider a car moving along a straight horizontal road with a speed of...

    Text Solution

    |

  7. A 500 kg horse pulls a cart of mass 1500 kg along a level road with an...

    Text Solution

    |

  8. Find the maximum speed at which a car can turn round a curve of 30 m r...

    Text Solution

    |

  9. A block of mass 50 kg slides over a horizontal distance of 1m. If the ...

    Text Solution

    |

  10. On the horizontal surface of a truck (mu=0.6) a block of mass 1 kg is...

    Text Solution

    |

  11. A vehicle of mass M is moving on a rough horizontal road with a moment...

    Text Solution

    |

  12. A body of weight 64 N is pushed with just enough force to start it mov...

    Text Solution

    |

  13. When a body is moving on a surface, the force of friction is called

    Text Solution

    |

  14. A block of mass 10kg is placed on a rough horizontal surface having co...

    Text Solution

    |

  15. It is easier to roll a barrel than pull it along the road. This state...

    Text Solution

    |

  16. A marble block of mass 2 kg lying on ice when given a velocity of 6m//...

    Text Solution

    |

  17. A horizontal force of 129.4 N is applied on a 10 kg block which rests ...

    Text Solution

    |

  18. A 60 kg weight is dragged on a horizontal surface by a rope upto 2 met...

    Text Solution

    |

  19. A car having a mass of 1000 kg is moving at a seed of 30 metres/sec. B...

    Text Solution

    |

  20. if mu(s),mu(k) and mu(r) are coefficeints of static friction, sliding ...

    Text Solution

    |