Home
Class 12
PHYSICS
A block of mass 2 kg is kept on a rough ...

A block of mass 2 kg is kept on a rough horizontal floor an pulled with a force F. If the coefficient of friction is `0.5.` then the minimum force required to move the block is :-

A

100/11 N

B

8 N

C

10 N

D

100/8 N

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • MOCK TEST 7

    AAKASH INSTITUTE ENGLISH|Exercise Exercise|90 Videos
  • MOCK TEST 6

    AAKASH INSTITUTE ENGLISH|Exercise Example|365 Videos
  • MOCK TEST 8

    AAKASH INSTITUTE ENGLISH|Exercise Example|30 Videos

Similar Questions

Explore conceptually related problems

Minimum force F required to move the block

A block of mass 5kg is placed on a rough horizontal plane whose coefficient of friction is 0.3 . Find the least horizontal force needed to move the block along the plane and the resultant of normal reaction and the force applied.

A block of mass m=1/3 kg is kept on a rough horizontal plane. Friction coefficient is mu=0.75 . The work done by minimum force required to drag to the block along the plane by a distance 5m is :-

A block of mass 20kg is placed on a rough horizontal plane and a horizontal force of 12N is applied. If coefficient of friction is 0.1 the frictional force acting on it is,

A block of mass m=5kg is resting on a rough horizontal surface for which the coefficient of friction is 0.2 . When a force F=40N is applied, the acceleration of the block will be (g=10m//s^(2)) .

A block of mass 50kg rests on a rough horizontal plane whose coefficient of static friction is 0.3 . What is the least force required to just move it if it is pulled (i) horizontally and (ii) at 45^(@) to the horizontal.

A block of mass 1 kg is held at rest against a rough vertical surface by pushing by a force F horizontally. The coefficient of friction is 0.5. When

A block of mass 2 kg is pushed against a rough vertical wall with a force is 40 N. Coefficient of static friction being 0.5. Another horizontal force is 15 N, is applied on the block in a direction parallel to the wall. Will the block move? If yes in which direction? If no, find the frictional force exerted by the wall on the block.

A block of mass 2 kg is pushed against a rough vertical wall with a force of 40N. Coefficient of static friction being 0.5. Another horizontal force of 15 N, is applied on the block in a direction parallel to the wall. Will the block move? If yes in which direction? If no, find the frictional force exerted by the wall on the block.

A force F is acting at an angle theta with horizontal on a block of mass 12 kg placed on a rough horizontal surface having coefficient of friction mu=frac{3}{4} as shown in the figure. The minimum value of force F to just move the block will be ( g = 10 ms^-2 )

AAKASH INSTITUTE ENGLISH-MOCK TEST 7-Exercise
  1. A block of mass 2 kg is kept on a rough horizontal floor an pulled wit...

    Text Solution

    |

  2. The r.m.s speed of the molecules of an ideal gas Is V0 If pressure of ...

    Text Solution

    |

  3. One mole of monatomic gas [gamma =5/3]is mixed with two moles of polya...

    Text Solution

    |

  4. E is the average rotational kinetic energy per mole of a diatomic gas ...

    Text Solution

    |

  5. Internal energy of n moles of helium at temperature T1 K is equal to t...

    Text Solution

    |

  6. The expansion of unit mass of a perfect gas at constant pressure as sh...

    Text Solution

    |

  7. Volume versus temperature (V-T) graph of an ideal gas of equal number ...

    Text Solution

    |

  8. The average kinetic energy per molecule of an ideal nonlinear polyatom...

    Text Solution

    |

  9. If speeds of the four molecules of an ideal gas are v, 3v, 5v and 7v r...

    Text Solution

    |

  10. An ideal gas is in a container of volume V0 at pressure P0 If the same...

    Text Solution

    |

  11. If the intensity of sound increased by a factor of 20 then the sound l...

    Text Solution

    |

  12. An open organ pipe of length L vibrates in its second harmonic mode. T...

    Text Solution

    |

  13. The equation of standing wave in a stretched string is given by {y =2s...

    Text Solution

    |

  14. Two plane progressive waves are given as (y1 = A1 sin) (Kx -omrga t) a...

    Text Solution

    |

  15. Two coherent plane progressive waves are represented by [y1 = sin (200...

    Text Solution

    |

  16. On the superposition of two waves [y1 = 3 sin (50 pi t - 20x)] and [y2...

    Text Solution

    |

  17. The characteristics of sound with the help of which we can distinguish...

    Text Solution

    |

  18. Doppler shift in frequency of sound is independent of (Source is movin...

    Text Solution

    |

  19. The change in entropy of the melting ice of 1kg at 273 kelvin is (giv...

    Text Solution

    |

  20. The apparent frequency of the whistle of an engine changes in the rati...

    Text Solution

    |

  21. In determination of velocity of sound in air using resonance column tu...

    Text Solution

    |