Home
Class 12
PHYSICS
A man pushes against a wall but fails to...

A man pushes against a wall but fails to move it. He does

A

negative work

B

positive but not maximum work

C

maximum positive work

D

no work at all

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise EFFICIENT|50 Videos

  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

A man pushes a wall and fails to displace it.He does

Figure shows two block A and B pushed against the wall with the force F . The wall is smooth but the surfaces in contact of A and B are rough. Which of the following is true for the system of blocks to be at rest againts wall?

A 1 kg block is being pushed against a wall by a force F=75N as shown in the figure. The coefficient of friction is 0.25. The magnitude of acceleration of the block is:

A block of mass m is pressed against a wall which is moving with an acceleration a as shown in figure If the block is pulled at an angle theta with downward vertical by a force F and it does not slide relative to the wall . Find the a. friction force between the block and wall b.inimum magnitude of F so as to cayse a relative sliding between the block and wall

A block of mass m kg is pushed up against a wall by a force P that makes an angle 'theta' with the horizontal as shown in figure. The coefficient of static friction between the block and the wall is mu . The minimum value of P that allows the block to remain stationary is

Does the transfer of energy take place when you push a huge rock with all your might and fail to move it ? Where is the energy you spend going ?

A body is pushed against vertical wall as shown. If the coefficient of friction between the body and the wall is 0.5, the magnitude of acceleration of the block is 10 K. Where K is

A ladder 13 m long is leaning against a wall. The bottom of the ladder is pulled along the ground away from the wall at the rate of 4 m/sec. Find the rate of decreasing at which the top of the ladder moving downwards on wall when the foot of the ladder is 5 m away from the wall.

A block of mass 5 kg is held against a wall with a force of 100 N . as shown om figure. It is moved horizontally slowly by applying a force parallel to the wall. Then the fricational force on the block due to wall is 25x newton. Find x . (Given mu = 0.5 and g = 10 m//sec^(2) )

A 15 m long ladder reached a window 12 m highfrom the ground on placing it against a wall at a distance a. Find the distance of the foot of theladder from the wall.

VMC MODULES ENGLISH-WORK ENERGY AND POWER -IMPECCABLE
  1. A man pushes against a wall but fails to move it. He does

    Text Solution

    |

  2. A body moves a distance of 10 m along a straight line under the action...

    Text Solution

    |

  3. A child is swinging a swing. Minimum and maximum heights fo swing from...

    Text Solution

    |

  4. A body is thrown vertically up with certain initial velocity, the pote...

    Text Solution

    |

  5. A body of mass 2 kg is thrown up vertically with kinetic energy of 490...

    Text Solution

    |

  6. A rod of length L and mass m is kept vertically on the ground. Its pot...

    Text Solution

    |

  7. A particle moves in a straight line with retardation proportional to i...

    Text Solution

    |

  8. Water falls from a height of 60 m at the rate of 15 kg//s to operate a...

    Text Solution

    |

  9. A pump motor is used to deliver water at a certain rate from a given p...

    Text Solution

    |

  10. A machine is delivering constant power to drive a body along a straigh...

    Text Solution

    |

  11. The particle of mass m is moving in a circular path of constant radius...

    Text Solution

    |

  12. A motor of power 60 W draws current 5 A from a source of 15 V. What is...

    Text Solution

    |

  13. An engine pumps up 100kg of water through a height of 10m in 5s. Given...

    Text Solution

    |

  14. A particle of mass 100 g is thrown vertically upwards with a speed of ...

    Text Solution

    |

  15. How much work must work be done by a force on 50 kg body in order to a...

    Text Solution

    |

  16. when the bob of a simple pendulum swings, the work done by tension in ...

    Text Solution

    |

  17. A body of mass 10 kg initially at rest acquires velocity 10 ms^(-1). W...

    Text Solution

    |

  18. A block of mass m=2kg is pulled by a force F=40 N upwards through a h...

    Text Solution

    |

  19. A spring of spring constant 5 xx 10^(3) N//m is stretched initially by...

    Text Solution

    |

  20. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |