Home
Class 11
PHYSICS
The friction acting on the upper block i...

The friction acting on the upper block is

A

`8 N`

B

`2 N`

C

`25 N`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
D

`f_(max) = mu xx 50 = 0.5 xx 50 = 25 N`
`10 N xx 25 N` , the lower block will not move , the system is at rest , hence no friction on the upper block`.
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Consider the situation as shown in the figure. A constant horizontal force 45 N acting on the lower blocks produces an acceleration 4(m)//(s^2) , the two blocks always move together. Find (a) coefficient of friction between the bigger block and the horizontal surface (b) friction acting on the upper block and (c ) work done by the friction on the upper block during a displacement 2m of the system.

A force of 100 N is applied on a block of mass 3kg as shown below. The coefficient of friction between wall and the block is 1//4 . The friction force acting on the block is :

A block of mass M is sliding down the plane. Coefficient of static friction is mu_(s) and kinetic friction is mu_(k) . Then friction force acting on the block is :

A block of 50 N is pressed normally against a wall as shown. The frictional force acting on the block is : ]

A force barF=hati+4hatj acts on block shown. The force of friction acting on the block is :

As shown in the figure , the friction force acting on the block is

A lift is moving downwards with an acceleration equal to g . A block of mass m , kept on the floor of the lift of friction coefficient mu , is pulled horizontally . The friction acting on the block is

A force of 200N is applied as shown in the figure on block of 3 kg. The coefficient of friction between the block and the wall is 0.3. Find the friction acting on the block. (in N) {Take g = 10 m//s^(2)

A block of mass 1 kg is placed on a truck which accelerates with acceleration 5ms^(-2) . The coefficient of static friction between the block and truck is 0.6. The frictional force acting on the block is

If the mass of block is 1 kg and a force of 10 / sqrt3 N is applied horizontally on the block as shown in the figure . The frictional force acting on the block is :

CP SINGH-FRICTION-Exercises
  1. A conveyor belt is moving at a constant speed of 2m//s . A box is gent...

    Text Solution

    |

  2. A car starts from rest on a 1600 m long bridge. The coefficient of fri...

    Text Solution

    |

  3. Mark the correct statements about the friction between two bodies

    Text Solution

    |

  4. Consider a vehicle going on a horizontal rod towards east. Neglect any...

    Text Solution

    |

  5. A block is placed on a rough floor and a horizontal force F is applie...

    Text Solution

    |

  6. A body of mass M is kept n a rough horizontal surfasce (friction coeff...

    Text Solution

    |

  7. The contact force exerted by a body A on another body B is equal to th...

    Text Solution

    |

  8. Let F,FN and f denote the magnitudes of the contact force, normal forc...

    Text Solution

    |

  9. A small block of mass of 0.1 kg lies on a fixed inclined plane PQ whic...

    Text Solution

    |

  10. A circular disc with a groove along its diameter is placed horizontall...

    Text Solution

    |

  11. The minimum acceleration that must be impprted to the cart in the figu...

    Text Solution

    |

  12. Consider the situation as shown in the diagram. The coefficient of f...

    Text Solution

    |

  13. In the previous problem , if the applied force is made 20 N , the acc...

    Text Solution

    |

  14. A 40kg slab rests on a frictionless floor as shown in the figure. A 10...

    Text Solution

    |

  15. A block B is placed on the block A.The mass of block B is less than th...

    Text Solution

    |

  16. Two blocks of mass m(1) = 6 kg and m(2) = 3kg are as shown in the diag...

    Text Solution

    |

  17. The rear side of a truck is open and a box of mass 2 kg is placed on t...

    Text Solution

    |

  18. The friction acting on the upper block is

    Text Solution

    |

  19. A block A of mass 200 kg rest on a block B of mass 300 kg. A is tied ...

    Text Solution

    |

  20. A system consists of three masses m(1) , m(1) , m(1) , m(2) and m(3) c...

    Text Solution

    |