Home
Class 12
PHYSICS
A body of mass 2 kg is acted upon by two...

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

A

40 J

B

`-40 J`

C

24 J

D

`-24J`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • 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 SECTION-D (LINKED COMPREHENSION TYPE QUESTIONS) (COMPREHENSION-I)|3 Videos
  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE|Exercise SECTION-A (OBJECTIVE TYPE QUESTIONS (ONE OPTIONISCORRECT)|60 Videos
  • WAVES

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

Similar Questions

Explore conceptually related problems

A body of mass 2 kg is acted upon by two forces 2N and 5N in the direction of hati + hatj and hatj-hatk respectively. If the body is displaced from (3,-2, 1) to (-1, 2, 3) (Positions are in m), then work done is

A body whose mass 6 kg is acted upon by two forces (8hati+10hatj) N and (4hati+8hatj) N. The accelerartion produced will be ("in" m//s^(2))-

A particle is acted upon by constant forces vecF=-2hati+3hatj+4hatk and vecF_(2)=- hati+2hatj-3hatk is distanced from the point A (2,1,0,) to the point B(-3,-4,2) Find the work done by forces.

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.

A body is acted upon by a force vec(F)=-hati+2hatj+3hatk . The work done by the force in displacing it from (0,0,0) to (0,0,4m) will be -

A constant force F=(hati+3hatj+4hatk)N acts on a particle and displace it from (-1m,2m,1m)to(2m,-3m,1m).

Two forces hati+hatj+hatk N and hati+2hatj+3hatk N act on a particle and displace it from (2,3,4) to point (5,4,3). Displacement is in m. work done is

If force vecf=(3xveci+y^(2)) W is acting on a body and body moves from (1m, 2m, 1m) to (2m, 3, 8m), then find the work done due to the force

A force vecF=(5hati+3hatj)N is applied over a particle which displaces it from its original position to the point vecs=S(2hati-1hatj)m . The work done on the particle is

AAKASH INSTITUTE-WORK, ENERGY AND POWER-SECTION-B (SUBJECTIVE TYPE QUESTIONS) (ONE OPTIONS IS CORRECT)
  1. A particle of mass m has half the kinetic energy of another particle o...

    Text Solution

    |

  2. A graph is plotted by taking translational kinetic energy of body as o...

    Text Solution

    |

  3. A body of mass 2 kg is acted upon by two forces vecD(1)=(2hati+3hatj)N...

    Text Solution

    |

  4. A body of mass 2 kg starts with an intitial-velocity 5 m/s. It the bod...

    Text Solution

    |

  5. A rectangular block is mobing along a frictionless path, when it encou...

    Text Solution

    |

  6. The position of a particle moving on a stringht line under rthe action...

    Text Solution

    |

  7. Which of the following statements is correct

    Text Solution

    |

  8. A uniform speing is kept on a horizontal frictionless floor such that ...

    Text Solution

    |

  9. A block of mass m is taken from A to B under the action of a constant ...

    Text Solution

    |

  10. A body of mas m starts from rest with a constant power. If velocity of...

    Text Solution

    |

  11. A body is moved from rest along a straight line by a machine deliverin...

    Text Solution

    |

  12. The potential energy of a particle of mass m is given by U=1/2kx^(2) ...

    Text Solution

    |

  13. Figure shows a body A at the top of a frictionless hemispherical inver...

    Text Solution

    |

  14. A ball suspended by a thread swings ia a vertical plane so that its ac...

    Text Solution

    |

  15. A car of mass mhasan engine which can deliver constant power P.the max...

    Text Solution

    |

  16. A particle of mass 0.1 kg is subjected to a force which varies with di...

    Text Solution

    |

  17. A particle is moving in a verticalcircle such that the tensionin the s...

    Text Solution

    |

  18. An ideal spring with spring constant k is hung from the ceiling and a ...

    Text Solution

    |

  19. The bob of pendulum is project with horizontal velocity of sqrt(3gf) I...

    Text Solution

    |

  20. A uniform chain of mass 4 kg and legth 2 m overhags a smooth table wit...

    Text Solution

    |