Home
Class 12
PHYSICS
A particle is desplaced from a position ...

A particle is desplaced from a position `(2hat I + 4hat-3hatk)` metre to another position `(12hati+14hatj+7hatk)` metre under the action of force `(hati+2hatj-hatk)` metre under rthe action of force `(hati+2hatj-hatk)` N. Work done by the force is

A

`5 J`

B

`10 J`

C

`15 J`

D

`20J`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-B (SUBJECTIVE TYPE QUESTIONS) (ONE OPTIONS IS CORRECT)|44 Videos
  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-C (OBJECTIVE TYPE QUESTIONS) (MORE THAN ONE OPTIONS ARE CORRECT)|16 Videos
  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise TRY YOURSELF|95 Videos
  • WAVES

    AAKASH INSTITUTE|Exercise ASSIGNMENT ( SECTION-D ( Assertion - Reason Type Questions ))|12 Videos

Similar Questions

Explore conceptually related problems

A particle is displaced from a position 2hati-hatj+hatk (m) to another position 3hati+2hatj-2hatk (m) under the action of a force 2hati+hatj-hatk(N) . The work done by the force is

A particle moves from position r_1=(3hati+2hatj-6hatk) m to position r_2=(14hati+13hatj+9hatk) m under the action of a force (4hati+hatj-3hatk) N , then the work done is

A body is displaced from position (hat i+hat j+hat k)m to position (4hati +5hatj + 6hatK) m under the action of force (5hati +4hatj-3hatk) N. The angle between the force and displacement vector is

A force F=(2hati-hatj+4hatk)N displaces a particle upto d=(3hati+2hatj+hat k)m. Work done by the force is

A particle has a displacement of vecs=hati+2hatj+hatk metre under the action of a force vec F =3hati -2hatj+5hatk . What is the work done ?

AAKASH INSTITUTE-WORK, ENERGY AND POWER-SECTION-A (OBJECTIVE TYPE QUESTIONS (ONE OPTIONISCORRECT)
  1. A man carries a load of 5 kg on his head through a distance of 10 m. t...

    Text Solution

    |

  2. A body moves a distance of 5 m along a straight line under the action ...

    Text Solution

    |

  3. A particle is desplaced from a position (2hat I + 4hat-3hatk) metre to...

    Text Solution

    |

  4. A block of mass m tied to a string is lowered by a distance d, at a co...

    Text Solution

    |

  5. A bob of mass m is pulled along a circular are by means of a constant ...

    Text Solution

    |

  6. Work done by a frictional force is

    Text Solution

    |

  7. Under the action of a force, a 1 kg body moves, such that its position...

    Text Solution

    |

  8. Two bodies of masses m(1) and m(2) have equal KE. Their momenta is in...

    Text Solution

    |

  9. Two bodies of different masses m(1) and m(2) have equal momenta. Their...

    Text Solution

    |

  10. A drop of mass 2.0 g falls from a cliff of height 1.0 km It hits the g...

    Text Solution

    |

  11. A block of mass sqrt2 kg is released from the top of an inclined smoot...

    Text Solution

    |

  12. A simple pendulum with bob of mass m and length x is held in position ...

    Text Solution

    |

  13. A force vecF=(4hati+5hatj)N acts on a particle moving in XY plane. Sta...

    Text Solution

    |

  14. Work energy gtheorem is applicable

    Text Solution

    |

  15. A particle of mass 1 kg is subjected to a force which varies with dist...

    Text Solution

    |

  16. Potential energy is defined

    Text Solution

    |

  17. An unloaded bus can be stopped by applying brakes on straight road aft...

    Text Solution

    |

  18. For a particle moving under the action of a variable force, kinetic en...

    Text Solution

    |

  19. A spring with spring constaant k when compressed by 1 cm the PE stored...

    Text Solution

    |

  20. Two springs have spring constants k(1)and k(2) (k(1)nek(2)). Both are ...

    Text Solution

    |