Home
Class 12
PHYSICS
A force of magnitude of 30N acting along...

A force of magnitude of `30N` acting along `hat(i)+hat(j)+hat(k)`, displaces a particle form point `(2,4,1)` to `(3,5,2)`. The work done during this displacement is `:-`

A

90J

B

30J

C

`30sqrt(3)J`

D

`30//sqrt(3)J`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • NEET-UG DRILL TEST 13

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|44 Videos
  • NEET-UG DRILL TEST 15

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A force (3hat(i) + 2hat(j)) N displaces an object through a distance (2hat(i) - 3hat(j)) m. The work done is :

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.

A force (3 hat(i)+4 hat(j)) acts on a body and displaces it by (3 hat(i)+4 hat(j))m . The work done by the force is

The work done by a force vec F = 3 hat i -4hat j +5hat k displaces the body from a point (3,4,6) to a point (7,2,5) is

A force vec F=(2 hat i + 3hat j \- 4 hat k)N acts on a particle moves 5 sqrt(2)m , the work done by force in joule is

If vec(F) = (5hat(i)+2hat(j) - 4hat(k))N , the magnitude of force is

A force vec(F) = (2hat(i) - 3hat(j) +7hat(k)) N is applied on a particle which displaces it by vec(S) = (4hat(i)+5hat(j) +hat(k)) . Find the work done on the particle .

A force (hat(i)-2hat(j)+3hat(k)) acts on a particle of position vector (3hat(i)+2hat(j)+hat(k)) . Calculate the torque acting on the particle.

Two forces vec(F)_(1) = - hat(i) + 2 hat(j) - 3hat(k) and vec(F)_(2) = 2hat(i) - 4hat(j) +3hat(k) act on a body and cause it to displace from point A(3,1,2) to B (-4,-2,3) . Calculate the total work done on the particle .

A force vec(F)=(5hat(i)+3hat(j)+2hat(k))N is applied over a particle which displaces it from its origin to the point vec(r)=(2hat(i)-hat(j))m . The work done on the particle in joules is-

NEET MAJOR TEST (COACHING)-NEET-UG DRILL TEST 14-PHYSICS
  1. A force of magnitude of 30N acting along hat(i)+hat(j)+hat(k), displac...

    Text Solution

    |

  2. A particle is acted upon by a force F which varies with position x is ...

    Text Solution

    |

  3. Two springs of spring constants 1500N//m and 3000N//m respectively are...

    Text Solution

    |

  4. A small ball is pushed from a height h along a smooth hemispherical bo...

    Text Solution

    |

  5. Two men with weights in the ratio 3 : 2 run up a staircase in times in...

    Text Solution

    |

  6. The linear momentum p of a body moving in one dimension varies with ti...

    Text Solution

    |

  7. The ratio of the radii of gyration of a circular disc and a circular r...

    Text Solution

    |

  8. A conical pendulum is moving in a circle with angular velocity omega a...

    Text Solution

    |

  9. A vehicle in moving with a velocity v on a carved total of width b and...

    Text Solution

    |

  10. A heavy particle hanging from a string of length l is projected horizo...

    Text Solution

    |

  11. A point P moves in counter clockwise direction on a circular path as s...

    Text Solution

    |

  12. Two particles whose masses are 10 kg and 30 kg and their position vect...

    Text Solution

    |

  13. 2 bodies of different masses of 2 kg and 4 kg are moving with velociti...

    Text Solution

    |

  14. A bullet of mass m is fired from a gun of mass M. The recoiling gun co...

    Text Solution

    |

  15. A particle of mass m strikes on ground with angle of incidence 45^(@)...

    Text Solution

    |

  16. A neutron makes a head-on elastic collision with a stationary deuteron...

    Text Solution

    |

  17. When a ceiling fan is switched on, it makes 10 rotations in the first ...

    Text Solution

    |

  18. Let I(1) and I(2) be the moment of inertia of a uniform square plate a...

    Text Solution

    |

  19. A uniform rod AB of length l and mass m is free to rotate abou...

    Text Solution

    |

  20. A mass M moving with a constant velocity parlale to the X-axis. Its an...

    Text Solution

    |