Home
Class 12
PHYSICS
A force of 750 N is applied to a block o...

A force of 750 N is applied to a block of mass 102 kg to prevent it from sliding on a plane with an inclination angle `30^@` with the horizontal. If the coefficients of static friction and kinetic friction between the block and the plane are 0.4 and 0.3 respectively, then the frictional force acting on the block is

A

750 N

B

500 N

C

345 N

D

250 N

Text Solution

Verified by Experts

The correct Answer is:
D

Net force along the plane
`=P-mgsintheta=750-500=250N`
Limiting friction `=F_1=mu_SR=mu_Smgcostheta`
`=0.4xx102xx9.8xxcos30=346N`
Promotional Banner

Topper's Solved these Questions

  • CENGAGE PHYSICS DPP

    CENGAGE PHYSICS|Exercise Fill in the blanks type|26 Videos

  • CENGAGE PHYSICS DPP

    CENGAGE PHYSICS|Exercise Comprehension Type|31 Videos

  • CENGAGE PHYSICS DPP

    CENGAGE PHYSICS|Exercise Multiple Correct Answer Type|54 Videos

  • CAPACITOR AND CAPACITANCE

    CENGAGE PHYSICS|Exercise Integer|5 Videos

  • CENTRE OF MASS CONVERSATION OF MOMENTUM AND COLLISION

    CENGAGE PHYSICS|Exercise Question Bank|38 Videos

Similar Questions

Explore conceptually related problems

A block of mass 2kg 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 10N, the mass of the block (in kg) is

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 rests on a rough inclined plane making an angle of 30° with the horizontal. The coefficient of static friction between the block and inclined plane is 0.8. If the frictional force on the block is 10 N, the mass of the block is

A block of mass 20kg is pushed with a horizontal force of 90N . It the coefficient of static and kinetic friction are 0.4 and 0.3, the frictional force acting on the block is (g =10ms^(-2)) .

A block of mass m slides down an inclined plane which makes an angle theta with the horizontal. The coefficient of friction between the block and the plane is mu . The force exerted by the block on the plane is

CENGAGE PHYSICS-CENGAGE PHYSICS DPP-Single Correct Answer type
  1. A fireman of mass 60 kg slides down a pole. He is pressing the pole wi...

    Text Solution

    |

  2. The force required just to move a body up an inclined plane is double ...

    Text Solution

    |

  3. A force of 750 N is applied to a block of mass 102 kg to prevent it fr...

    Text Solution

    |

  4. Two blocks of masses m1 and m2 connected by a string are placed gently...

    Text Solution

    |

  5. A block of mass m is at rest relative to the stationary wedge of mass ...

    Text Solution

    |

  6. Two block of masses m1 and m2 are connected with a massless unstretche...

    Text Solution

    |

  7. As shown in the figure, M is a man of mass 60 kg standing on a block o...

    Text Solution

    |

  8. The coefficient of friction between the block and the horizontal surfa...

    Text Solution

    |

  9. In the figure shown if friction co-efficient of block 1 and 2 with inc...

    Text Solution

    |

  10. A force F=2t is spplied at t=0 sec to the block of mass m placed on a ...

    Text Solution

    |

  11. A block A (5kg) rests over another block B (3kg) placed over a smooth ...

    Text Solution

    |

  12. Three blocks of masses 6 kg, 4 kg and 2 kg are pulled on a rough surfa...

    Text Solution

    |

  13. Three blocks of masses 6 kg, 4 kg and 2 kg are pulled on a rough surfa...

    Text Solution

    |

  14. Three blocks of masses 6 kg, 4 kg and 2 kg are pulled on a rough surfa...

    Text Solution

    |

  15. In the situation given in figures (a) (b) and (c ) the block of mass m...

    Text Solution

    |

  16. In the situation given in figures (a) (b) and (c ) the block of mass m...

    Text Solution

    |

  17. In the situation given in figures (a) (b) and (c ) the block of mass m...

    Text Solution

    |

  18. A boy of mass 50 kg produces an acceleration of 2(m)/(s^2) in a block ...

    Text Solution

    |

  19. A force F=t is applied to a block A as shoen in figure where t is time...

    Text Solution

    |

  20. With reference to the figure shown, if the fcoefficient of friction at...

    Text Solution

    |