Home
Class 11
PHYSICS
One body is displaced in the direction o...

One body is displaced in the direction of X - axis up to 4 meter under influence of `(-1,2,3)` N force. Find work done by the force .

Text Solution

Verified by Experts

` W = vec(F) .vec(d) = (-1,2,3).(4,0,0)`
`= - 4` Joule .
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - D NCERT Exemplar Solutions (Multiple Choice Questions)|21 Videos

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - D NCERT Exemplar Solutions (Very Short Answer Type Questions)|12 Videos

  • WORK, ENERGY AND POWER

    KUMAR PRAKASHAN|Exercise SECTION - B Numericals (Numerical From .DARPAN. Based On Textbook)|15 Videos

  • WAVES

    KUMAR PRAKASHAN|Exercise SECTION-F (Questions From Module) (Sample questions for preparation of competitive exams)|23 Videos

Similar Questions

Explore conceptually related problems

A body of mass 2 kg is rest on a smooth horizontal surface . When a horizontal force of 0.5 N acts on this bofy it is displaced in the direction of the force . Find the work done by the force in 8.0 s .Show that this work is equal to the change in kinetic energy of the body .

A body is displaced by 2m in Z - direction by a force (-4,2,6)N . Find the work done ……….

A body is displaced by 6 m in Y - direction by a force (5,2,3) N , so work done …….. .

When force (3,2,1) Newton acts on a body , dispalcement of the body in the direction of Y - axis s 5 meter . Work done is ……….

A body displaced from (1,1) to (2,2) along the line y=x under the force vecF=xhat(j)+yhat(i) then find the work done by this force for above displacement. (all units are in S.I.)

Lift an object up. Work is done by the force exerted by you on the object. The object moves upwards. The force you exerted is in the direction of displacement. However, there is the force of gravity acting on the object. Which one of these forces is doing positive work? Give reason.

A force (3hati+4hatj) newton acts on a boby and displaces it by (3hati+4hatj) metre. The work done by the force is

A block of mass 2 kg is plased on a smooth horizontal surface. Two forces F_(1)=20 N and F_(2)=5 N start acting on the block in opposite directions as shown. If block gets displaced by 5 m in the direction of net force then work done by F_(2) is :-

KUMAR PRAKASHAN-WORK, ENERGY AND POWER -SECTION - C Objective Questions (VSQs)
  1. Equal force is applied on one heavy weight and one light weight body ....

    Text Solution

    |

  2. When two bodies A and B are collide with each other . They work on ea...

    Text Solution

    |

  3. One body is displaced in the direction of X - axis up to 4 meter under...

    Text Solution

    |

  4. What will be the work done on the body moving with constant speed ?

    Text Solution

    |

  5. Find the kinetic energy when 2 gm bullet moves with the velocity of 50...

    Text Solution

    |

  6. The unit of spring constant is Jm^(-2) .Is the statement true or false...

    Text Solution

    |

  7. Which physical quantity is obtain by negative value of derivative of p...

    Text Solution

    |

  8. 1 Meg watt = ……….. erg/second .

    Text Solution

    |

  9. Why potential energy of a body increases when it is carried from the e...

    Text Solution

    |

  10. Which nuclear process occur in atom bomb ? Or write the principle of ...

    Text Solution

    |

  11. Which nuclear process occur in hydrogen bomb ? Or write the principle ...

    Text Solution

    |

  12. In which condition ,work done on the body does nit increase its kineti...

    Text Solution

    |

  13. If two bodies experience collision when they are moving opposite to e...

    Text Solution

    |

  14. It work done positive or negative for stretched spring ?

    Text Solution

    |

  15. What happens in a eleastic collision of two identical bodies moving op...

    Text Solution

    |

  16. Write the condition for conservative forces .

    Text Solution

    |

  17. Is the work done by non conservative force is always negative ? Discu...

    Text Solution

    |

  18. What is head -on collision ?

    Text Solution

    |

  19. At which position (point) pendulum of a clock have maximum speed ?

    Text Solution

    |

  20. If mechanical work done on the body then kinetic energy increases or d...

    Text Solution

    |