Home
Class 12
PHYSICS
A metal block is resting on a rough wood...

A metal block is resting on a rough wooden surface. A horizontal force applied to the block is increased uniformly. Which of the following curves correctly represents velocity of the block ?

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
C

Block will start motion it
`ktgt=mumgrArrtgt=(mumg)/(k)=t_(0)`
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

A block is placed on a rough horizontal plane. Three horizontalforces are applied on the block as shown in the figure. If the block is in equilibrium, find the friction force acting on the block.

A block of mass 10 kg is moving on a rough surface as shown in figure. The frictional force acting on block is :-

A block of mass'm' it kept over the smooth surface of the plank of mass M. the plank of length l is kept over the smooth horizontal surface. A constant horizontal force F is applied onto the plank as shown in figure. Calculate the time after which the block falls off the plank?

Two blocks of equal mass m are connected by an unstretched spring and the system is kept at rest on a frictionless horizontal surface. A constant force F is applied on the first block pulling away from the other as shown in Fig. Then the displacement of the centre of mass in at time t is

A block of ice at -12^(@)C is slowly heated and converted into steam at 100^(@)C . Which of the following curves best represents the event ?

Two blocks of masses 2 kg and 1 kg are in contact with each other on a frictionless table. When a horizontal force of 3.0 N is applied to the block of mass 2 kg the value of the force of contact between the two blocks is:

A block is kept on a rough surface and applied with a horizontal force as shown which is gradually increasing for zero. The coefficient of static and kinetic friction are 1//sqrt3 then

Two blocks of equal mass m are connected by an unstretched spring and the system is kept at rest on a frictionless horizontal surface. A constant force F is applied on the first block pulling away from the other as shown in Fig. If the extension of the spring is x_(0) at time t , then the displacement of the first block at this instant is

Two blocks of equal mass m are connected by an unstretched spring and the system is kept at rest on a frictionless horizontal surface. A constant force F is applied on the first block pulling away from the other as shown in Fig. If the extension of the spring is x_(0) at time t , then the displacement of the second block at this instant is

Two block A and B are as shown in figure. The minimum horizantal force F applied to the block B for which slipping begins between B and ground is :

ALLEN -TEST PAPER-Exercise (Physics)
  1. A block is moving along y-axis with velocity vec(v)(A)=4hat(j) on a pl...

    Text Solution

    |

  2. A block is projected up along the line of greatest slope of an incline...

    Text Solution

    |

  3. A metal block is resting on a rough wooden surface. A horizontal force...

    Text Solution

    |

  4. A Body intially at rest, starts moving along x-axis in such a way so t...

    Text Solution

    |

  5. A particle is shifted from A to B and then from B to C where A,B and C...

    Text Solution

    |

  6. Velocity of a stone projected, 2 second before it reaches he maximum h...

    Text Solution

    |

  7. A particle is moving along x-axis whose position is given by x=4-9t+(t...

    Text Solution

    |

  8. A particle moves 21m along the vector 6hat(i)+2hat(j)+3hat(k) , then 1...

    Text Solution

    |

  9. A particle is falling freely under gravity. In frist t secnd it covers...

    Text Solution

    |

  10. For a particle moving along x-axis, speed must be increasing for the f...

    Text Solution

    |

  11. A car of mass 1000kg moves from point A to B. If kinetic energy of ca...

    Text Solution

    |

  12. Two bodies of masses m(1) and m(2) are acted upon by a constant force ...

    Text Solution

    |

  13. A body (intially at rest is falling under gravity. When it loses a gra...

    Text Solution

    |

  14. The graph below shows how the force on a mass depends on the position ...

    Text Solution

    |

  15. A particle with total energy E moves in one direction in a region wher...

    Text Solution

    |

  16. Consider the folllowing graph of potential energy (U) vs position (x) ...

    Text Solution

    |

  17. A chain of uniform mass m and length L is held on a frictionless table...

    Text Solution

    |

  18. A force of magnitude of 30N acting along hat(i)+hat(j)+hat(k), displac...

    Text Solution

    |

  19. A spring of force constant K is cut in two parts at its one third leng...

    Text Solution

    |

  20. A ball of mass m is attached to a string whose other end is fixed. The...

    Text Solution

    |