Home
Class 12
PHYSICS
A 0.2 kg object at rest is subjected to ...

A `0.2 kg` object at rest is subjected to a force `(0.3hati-0.4hatj) N`. What is its velocity vector after `6 sec`

A

`(9hati-12hatj)`

B

`(8hati-16hatj)`

C

`(12hati-9hatj)`

D

`(16hati-8hatj)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • NTA NEET SET 97

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos
  • NTA NEET TEST 101

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

The velocity of an object at t =0 is vecv_(0) =- 4 hatj m/s . It moves in plane with constant acceleration veca = ( 3hati + 8 hatj) m//s^(2) . What is its velocity after 1 s?

A particle of mass 2kg is moving in free space with velocity vecv_0=(2hati-3hatj+hatk)m//s is acted upon by force vecF=(2hati+hatj-2hatk)N . Find velocity vector of the particle 3s after the force starts acting.

At any instant, overset rarr(F) = (4.0 hatj)N acts on a 0.25kg object that has position vector overset rarr(r ) = (2.0hati - 2.0 hatk)m and velocity overset rarr(upsilon) = (-5.0 hati + 5.0 hatk) m//s . About the origin, what are angular momentum and torque acting on the object ?

A particle has initial velocity (2hati+3hatj) and acceleration (0.3hati+0.2hatj) . The magnitude of velocity after 10 second will be

At the instant the displacement of a 1.50 kg object relative to the origin is vecd=(2.00m)hati+(4.00m)hatj-(3.00m//s)hatk , its velocity is vecv=-(6.00m//s)hati+(3.00m//s)hatj+(3.00m)hatk and it is subject to a force vecF=(6.00N)hati-(8.00N)hatj+(4.00N)hatk . Find (a) the acceleration of the object, (b) the angular momentum of the object about the origin, ( c) the torque about the origin acting on the object, and (d) the angle between the velocity of the object and the force acting on the object.

A body starts with a velocity (2hati+3hatj+11hatk)m//s and moves with an acceleration (5hati+5hatj-5hatk)m//s^(2) . What is its velocity after 0.2 sec ?

An elementary particle is subjected to a displacement of Deltavecr=2.0hati-4.0hatj+8.0hatk , ending with the position vector vecr=4.0hatj-5.0hatk , in meters. What was the particle's initial position vector?

A 3.00 kg object has a velocity (6.00 hati - 2.00 hatj) m//s . What is the net work done on the object if its velocity changes to (8.00 hati - 4.00 hatj) m//s ?

Given that 0.4hati+0.8hatj+b hatk is a unit vector . What is the value of b ?

NTA MOCK TESTS-NTA NEET SET 99-PHYSICS
  1. A particle moves along a straight line OX. At a time t (in seconds) th...

    Text Solution

    |

  2. A piece of marble is projected from the earth's surface with a velocit...

    Text Solution

    |

  3. A 0.2 kg object at rest is subjected to a force (0.3hati-0.4hatj) N. W...

    Text Solution

    |

  4. A cricket baal of mass 0.25 kg with speed 10 m/s collides with a bat a...

    Text Solution

    |

  5. This binding energy per nucleon for the parent nucleus is E(1) and tha...

    Text Solution

    |

  6. The binding energies per nucleon for deuteron (.1H^2) and helium (.2He...

    Text Solution

    |

  7. A stretched string of length 1 m fixed at both ends , having a mass o...

    Text Solution

    |

  8. A particle executing SHM has a maximum speed of 0.5ms^(-1) and maximum...

    Text Solution

    |

  9. If the work function for a certain metal is 3.2 xx 10^(-19) joule and ...

    Text Solution

    |

  10. For a certain metal v = 2 v(0) and the electrons come out with a maxim...

    Text Solution

    |

  11. A small ball of density rho is immersed in a liquid of density sigma(g...

    Text Solution

    |

  12. A body of density d is counterpoised by Mg of weights of density d1 in...

    Text Solution

    |

  13. Refractive index of glass with respect to medium is (4)/(3). If v(m) -...

    Text Solution

    |

  14. The refractive index of a material of a plano-concave lens is 5/3, the...

    Text Solution

    |

  15. Two uniform thin rods each of mass M and length I are placed along X a...

    Text Solution

    |

  16. A soild cylinder of mass 2 kg and radius 0.2 m is rotating about its o...

    Text Solution

    |

  17. The given electrical network is equivalent to :

    Text Solution

    |

  18. In a reverse biased diode, when the applied voltage changes by 1V, the...

    Text Solution

    |

  19. A gas mixture consists of 2 moles of oxygen and 4 moles of argon at ...

    Text Solution

    |

  20. If the speed of light c, acceleration due to gravity (g) and pressure ...

    Text Solution

    |