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 of unknown mass is at rest on a rough, horizontal surface. A horizontal force F is applied to the block. The graph in the figure shows the acceleration of the block with respect to the applied force. The mass of the block is

A block is sliding on a rough horizontal surface. If the contact force on the block is sqrt2 times the frictional force, the coefficient of friction is

A homogenous block of mass m, width b and height h is resting on a rough horizontal surface A horizontal force F is applied to it , which makes it to move with a constant velocity . The coefficient of friction between block and surface is mu Find the greatest height at which force F may be applied to slide the block with out tipping over

A block is kept on a rough horizontal surface. A variable horizontal force is acting on the block as shown in the figure. At t=0 , block is at rest. Kinectic energy of block at t=5 sec will be (g=10m//s^(2))

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 horizontal force of 20 N is applied to a block of 10 kg resting on a rough horizontal surface. How much additional force is required to just move the block, if the coefficient of static friction between the block and the surface is 0.4 ?

A block rests on a horizontal surface. A horizontal force F is applied to the block. The acceleration (a) produced in the block as a function of applied force (F) has been plotted in a graph (see figure). Find the mass of the block.

A block resting on a rough horizontal surface. A sharp horizontal impulse is applied on the block at t=0 . If at an instant t , its velocity be v and displacement up to this instant be s , then which of the following graphs is // are correct?

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 given below shows how the force on a mass depends on the po...

    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

    |