Home
Class 11
PHYSICS
An object is displaced from point A(2m,3...

An object is displaced from point A(2m,3m,4m,) to a point B (1m,2m,3m)N. Find the work done by this force in this process.

Text Solution

Verified by Experts

`W=int_(r_(i))^(r_(f))F.ds=int_(((2m,3m,4m,)))^(((1m,2m,3m)))(2hati+3hatj+4hatk).(dxhati+dxhatj+dzhatk)`
`=[2x+3y+4z]_(((2m,3m,4m)))^(((1m,2m,3m)))=-9J`
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise CHECK POINT 6.1|20 Videos
  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise CHECK POINT 6.2|20 Videos
  • WORK, ENERGY & POWER

    DC PANDEY|Exercise Level 2 Comprehension Based|2 Videos
  • WORK, POWER AND ENERGY

    DC PANDEY|Exercise E Integer Type Questions|11 Videos

Similar Questions

Explore conceptually related problems

An object is displaced from point A(2m,3m,4m) to a point B(1 m,2 m,3 m) under a constant force F=(2hati + 3hatj + 4hatk)N . Find the work done by this force in this process.

An object is displaced from a point A(0, 0, 0) to B(1m, 1m , 1m) under a force vecF=(yhati+xhatj)N . Find the work done by this force in this process.

A force of (-3hat(i)-hat(j)+2hat(k)) N displaced the body from a point (4, -3, -5) m to a point (-1, 4, 3) m in a staight line. Find the work done by the force.

An object is displaced along a straight line from point A (2 m, 1 m , 5m) to B (4m, 2m, 1m) under the action of a force vecF=(xhati+3y^(2)hatj+2zhatk)N Find work done by this force.

A force F is related to the position of a particle by the relation F=(10x^(2))N . Find the work done by the force when the particle moves from x=2m to x=4m .

A body of mass 2 kg is acted upon by two forces vecD_(1)=(2hati+3hatj)N and vecF_(2)(-2hatk+3hatj)N. If the body is displaced from A(3m, -2m, 1m) to B (-1m, +2m,-3m), then work done on the body is

Force acting on a particle varies with displacement as shown is Fig. Find the work done by this force on the particle from x=-4 m to x = + 4m. .

A block is constrained to move along x axis under a force F=-(2x)N . Find the work done by the force when the block is displaced from x=2 m to x = 4m

DC PANDEY-WORK, ENERGY AND POWER-MEDICAL ENTRACES GALLERY
  1. An object is displaced from point A(2m,3m,4m,) to a point B (1m,2m,3m)...

    Text Solution

    |

  2. A body of mass 1 kg begins to move under the action of a time depende...

    Text Solution

    |

  3. A particle of mass 10 g moves along a circle of radius 6.4 cm with a c...

    Text Solution

    |

  4. A block of mass 10 kg, moving in x-direction with a constant speed of ...

    Text Solution

    |

  5. A partical of mass m is driven by a machine that deleveres a constant ...

    Text Solution

    |

  6. A block of mass m =11.7 kg is to be pushed a distance of s=4.65 m. As...

    Text Solution

    |

  7. A force F=(10+0.50x) acts on a particle in the x direction, where F is...

    Text Solution

    |

  8. An elevator weighing 500 kg is to be lifted up at a constant velociyt ...

    Text Solution

    |

  9. The distance of closest approach of an alpha-particle fired at nucleus...

    Text Solution

    |

  10. Two bodies of different masses are moving with same kinetic energy. Th...

    Text Solution

    |

  11. Two bodies of masses 1 kg and 2 kg moving withy same velocities are st...

    Text Solution

    |

  12. One moving electron when comes closer to other stationary electron, th...

    Text Solution

    |

  13. A body of mass m, accelerates uniformly from rest to V(1) in time t(1)...

    Text Solution

    |

  14. A uniform chain of length l is placed on a smooth horizontal table, su...

    Text Solution

    |

  15. The kinetic energy of a body of mass 4 kg and momentum 6 N-s will be

    Text Solution

    |

  16. A body of mass m=3.90 kg slides on a horizontal frictionless table wit...

    Text Solution

    |

  17. A string of length L and force constant k is stretched to obtain exten...

    Text Solution

    |

  18. A body is initially at rest. It undergoes one dimensional motion with ...

    Text Solution

    |

  19. If two person A and B take 2 s and 4 s, respectively to lift an object...

    Text Solution

    |

  20. If , a machine gun fires n bullets per second each with kinetic energy...

    Text Solution

    |

  21. A uniform force of (3hati+hatj) N acts on a particle of mass 2kg. Henc...

    Text Solution

    |