Home
Class 11
PHYSICS
Force acting on a particle is (2hati+3ha...

Force acting on a particle is `(2hati+3hatj)N`. Work done by the force is zero, when a particle is moved along the line `3y+kx=5`. Here the value of k is

A

2

B

4

C

6

D

8

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK, POWER & ENERGY

    AAKASH SERIES|Exercise EXERCISE - II (ENERGY)|33 Videos

  • WORK, POWER & ENERGY

    AAKASH SERIES|Exercise EXERCISE - II (POWER)|17 Videos

  • WORK, POWER & ENERGY

    AAKASH SERIES|Exercise EXERCISE - II (SCALARS (OR) DOT PRODUCT)|9 Videos

  • WORK POWER ENERGY

    AAKASH SERIES|Exercise EXERCISE - 3|61 Videos

Similar Questions

Explore conceptually related problems

The gravitational field in a region is giveny by vecE = (2hati +3hatj) N/kg. The workdone by the field when the particle is moved on the line 3y+2x=5

Velocity - time graph of a particle moving in a straight line is as shown in figure. Mass of the particle is 2 kg. Work done by all the forces acting on the particle in time interval between t = to t = 10 is

A force vecF = 3hati+chatj+2hatk acting on a particle causes a displacement vecs =- 4hati+2hatj+3hatk in its own direction. If the work done is 6 J, the value of c is

A force F=-(K)/(x^(2))(xne0) acts on a particle along the X-axis . Find the work done by the force in displacing the particale from x = +a to x = + 2a. Take K as a positive constant .

AAKASH SERIES-WORK, POWER & ENERGY -EXERCISE - II (WORK)
  1. The length of a smooth inclined plane of incilination 30^(@) is 5 m. T...

    Text Solution

    |

  2. A body of mass 10 kg is raised from certain depth. By the time is rais...

    Text Solution

    |

  3. A bucket fillled with water weighing 20 kg is raised from a well of de...

    Text Solution

    |

  4. A block of mass m is lowered with the help of a rope of negligible mas...

    Text Solution

    |

  5. A force barf=(hati-3hatj+2hatk)N moves a particle from bar r(1)=2hati+...

    Text Solution

    |

  6. A uniform chain of length 2 m is kept on a table such that a length of...

    Text Solution

    |

  7. n identical cubes each of amss m an side I are on the horizontal surfa...

    Text Solution

    |

  8. A person of mas 50 kg carryign a load of 20 kg walks up a staircase. I...

    Text Solution

    |

  9. A rectangular block of dimensions 6m xx 4m xx 2m and of density 1.5 gm...

    Text Solution

    |

  10. A body of mass 5 kg moving alonga straight line is accelerated from 4m...

    Text Solution

    |

  11. A uniform rod of length 2m and mass 5kg is lying on a horizontal surfa...

    Text Solution

    |

  12. A ladder .AB. of weight 300 N and length 5 m is lying on a horizontal ...

    Text Solution

    |

  13. Force acting on a particle is (2hati+3hatj)N. Work done by the force i...

    Text Solution

    |

  14. A force of (4x^(2)+3x)N acts on a particle which displaces it from x=2...

    Text Solution

    |

  15. Velocity -time graph of a particle of mass 2 kg moving in a straight l...

    Text Solution

    |

  16. A force of 5N is applied on a 20 Kg mass at rest. The work doen in the...

    Text Solution

    |

  17. A body moves a distance of 20 m along a striaght line under the action...

    Text Solution

    |

  18. The work done in lifting a body of mass 20 kg and specific gravity 3.2...

    Text Solution

    |

  19. The work done in carrying a body from A to B is 20 J and from B to C i...

    Text Solution

    |

  20. A locomotive of mass 'm' starts moving so that its velocity varies as ...

    Text Solution

    |