Home
Class 12
PHYSICS
A mass of 1 kg is acted upon by a single...

A mass of 1 kg is acted upon by a single force `F=(4hati+4hatj)N`. Under this force it is displaced from (0,0) to (1m,1m). If initially the speed of the particle was 2 `ms^(-1)`, its final speed should be

A

`6ms^(-1)`

B

`4.5ms^(-1)`

C

`8ms^(-1)`

D

`7.2ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • NEET MOCK TEST 13

    NTA MOCK TESTS|Exercise MCQs (PHYSICS)|45 Videos

  • NEET MOCK TEST 15

    NTA MOCK TESTS|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

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).

A stationary particle of mass m=1.5kg is acted upon by a variable force. The variation of force with respect to displacement is plotted in figure. a. Calculate the velocity acquired by the particle after getting displaced through 6m . b. What is the maximum speed attained by the particle and at what time is it attained?

A particle is acted upon by only a conservative force F=(7hat(i)-6hat(j)) N (no other force is acting on the particle). Under the influence of this force particle moves from (0, 0) to (-3m, 4m) then

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 particle of mass m is acted upon by a force F= t^2-kx . Initially , the particle is at rest at the origin. Then

A body is displaced from (0,0) to (1 m, 1m) along the path x = y by a force F=(x^(2) hatj + y hati)N . The work done by this force will be

A force vecF=(3hati+4hatj)N is acting on a point mass m=((1)/(2))kg at a point A(2m,2m) . Find the angular acceleration of the line OA at this instant.

Force acting on a particle moving in the x-y plane is vecF=(y^2hati+xhatj)N , x and y are in metre. As shown in figure, the particle moves from the origin O to point A (6m, 6m) . The figure shows three paths, OLA, OMA, and OA for the motion of the particle from O to A. Now consider another situation. A force vecF=(4hati+3hatj)N acts on a particle of mass 2kg . The particle under the action of this force moves from the origin to a point A (4m, -8m) . Initial speed of the particle, i.e., its speed at the origin is 2sqrt6ms^-1 . Figure shows three paths for the motion of the particle from O to A. Speed of the particle at A will be nearly

Force acting on a particle moving in the x-y plane is vecF=(y^2hati+xhatj)N , x and y are in metre. As shown in figure, the particle moves from the origin O to point A (6m, 6m) . The figure shows three paths, OLA, OMA, and OA for the motion of the particle from O to A. Now consider another situation. A force vecF=(4hati+3hatj)N acts on a particle of mass 2kg . The particle under the action of this force moves from the origin to a point A (4m, -8m) . Initial speed of the particle, i.e., its speed at the origin is 2sqrt6ms^-1 . Figure shows three paths for the motion of the particle from O to A. If the potential energy at O is 16J , the potential energy at A will be

NTA MOCK TESTS-NEET MOCK TEST 14-PHYSICS
  1. A perfect gas contained in a cylinder is kept in vacuum. If the cylind...

    Text Solution

    |

  2. The density of a gas at 27^(@)C and 760 mm pressure is 24. Calculate t...

    Text Solution

    |

  3. A vertical column 50 cm long at 50^(@)C balances another column of sam...

    Text Solution

    |

  4. The height of a mercury barometer is 75 cm at sea level and 50 cm at t...

    Text Solution

    |

  5. A ball is dropped from a height h on to a floor . If the cofficient of...

    Text Solution

    |

  6. A body moves along an uneven horizontal road surface with constant spe...

    Text Solution

    |

  7. Two loops P and Q are made from a uniform wire. The redii of P and Q a...

    Text Solution

    |

  8. A ball of mass m approaches a wall of mass M (M>>m), with speed 2 ms^(...

    Text Solution

    |

  9. A mass of 1 kg is acted upon by a single force F=(4hati+4hatj)N. Under...

    Text Solution

    |

  10. In a cylindrical vessel containing liquid of density rho there are two...

    Text Solution

    |

  11. An anisotropic material has a coefficient of linear expansion alpha, 2...

    Text Solution

    |

  12. Which one of the following would raise the temperature of 20 g of wate...

    Text Solution

    |

  13. Energy is being emitted from the surface of a black body at 127^(@)C t...

    Text Solution

    |

  14. Wein's constant is 2892xx10^(-6) MKS unit and the value of lambda(m) f...

    Text Solution

    |

  15. Two particles are projected from a point at the same instant with velo...

    Text Solution

    |

  16. The capacity of an isolated sphere is increased n times when it is enc...

    Text Solution

    |

  17. Capacitor C(1) of the capacitance 1muF and another capacitor C(2) of c...

    Text Solution

    |

  18. A charged soap bobbe having surface charge density sigma and radius r....

    Text Solution

    |

  19. Light of wavelength lambda=5000Å falls normally on a narrow slit. A sc...

    Text Solution

    |

  20. How many minimum numbers of a coplanar vector having different magntid...

    Text Solution

    |