Home
Class 12
PHYSICS
A body of mass m was slowly pulled up th...

A body of mass m was slowly pulled up the hill by a force F which at each point was directed along the tangent of the trajectory. All surfaces are smooth. Find the work done by this force

A

mgh

B

mgl

C

Zero

D

Data insufficient

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-C (OBJECTIVE TYPE QUESTIONS) (MORE THAN ONE OPTIONS ARE CORRECT)|16 Videos

  • WORK, ENERGY AND POWER

    AAKASH INSTITUTE ENGLISH|Exercise SECTION-D (LINKED COMPREHENSION TYPE QUESTIONS) (COMPREHENSION-I)|3 Videos

  • WORK, ENERGY AND POWER

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

  • WAVES

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

Similar Questions

Explore conceptually related problems

A body of mass m was slowly pulled up the hill by a force F which at each point was directed along the tangent of the trajectory. All surfaces aresmooth. Find the work performed by this force.

A body of mass m was slowly hauled up the hill as shown in the fig. by a force F which at each point was directed along a tangent to the trajectory. Find the work performed by this force, if the height of the hill is h, the length of its base is I and the coefficient ot friction is mu . .

A body of mass M was slowly hauled up a rough hill by a force F which at each point was directed along a tangent to the hill. Work done by the force

A block of mass m is slowly carried on a inclined plane by a force F which always acts along the tangent to the plane. If the co-efficient of friction between the block and incline be mu , then work done by force of friction while carrying block from bottom of the plane to the top will be : A. dependent on the actual shape of the path between point A and B. B. will have a total positive value C. will not change if force F is not applied along the tangent to the plane always. D. independent of the actual shape of the path between points A and B.

A body, acted upon by a force of 50N, is displaced through a distance 10m in direction making an angle of 60^(@) with the force. Find the work done by the force.

A block of mass m is slowly pulled along a curved surface from position 1 and 2. If the coefficient of kinetic friction between the block and surface is mu , find the work done by the applied force.

A small block of mass m os takes slowly up a fixed hemisphere from P to Q and then slowly down along its surface from Q to S by force F , which at each point of the surface, is tangential to the surface. If the coefficient of friction is mu , then the work performed by the force F in taking the block from P to S along the hemispherical surface of radius R is :

In fig. mass m is being pulled on the incline of a wedge of mass M. All the surfaces are smooth. Find the acceleration of the wedge.

An object of mass m is tied to a string of length l and a variable force F is applied on it which brings the string gradually at angle thit theta with the vertical. Find the work done by the force F .

An object of mass m is tied to a string of length l and a variable force F is applied on it which brings the string gradually at angle theta with the vertical. Find the work done by the force F .

AAKASH INSTITUTE ENGLISH-WORK, ENERGY AND POWER-SECTION-B (SUBJECTIVE TYPE QUESTIONS) (ONE OPTIONS IS CORRECT)
  1. A particle is placed on the top of a hemispherical shell of same mass....

    Text Solution

    |

  2. A bob is tied up with a string AB of length l. End A of the string is ...

    Text Solution

    |

  3. If the linear momentum is increased by 50%, then kinetic energy will b...

    Text Solution

    |

  4. A body of mass m was slowly pulled up the hill by a force F which at e...

    Text Solution

    |

  5. Work done by a spning force is

    Text Solution

    |

  6. A small body of mass m slides without friction from the top of a hemi...

    Text Solution

    |

  7. A motor drives a body along a straight line with a constant force. The...

    Text Solution

    |

  8. An engine pumps water continuously through a hole. Speed with which wa...

    Text Solution

    |

  9. A machine which is 75% efficient, use 12 J of energy in lifting 1 kg m...

    Text Solution

    |

  10. A bullet when fixed at a target with a velocity of 100 ms^(-1), penetr...

    Text Solution

    |

  11. A particle is rotated in a vertical circle by connecting it to a strin...

    Text Solution

    |

  12. The block of mass m is released when the spring was in its natrual len...

    Text Solution

    |

  13. Consider the spring blcok system shoen in the figure initially block m...

    Text Solution

    |

  14. Consider the spring block system shown in the figure initially block m...

    Text Solution

    |

  15. Consider the system shown in the figure. Coefficient of friction betwe...

    Text Solution

    |

  16. Consider the system shown in the figure. Coefficient of friction betwe...

    Text Solution

    |

  17. A particle of mass m initially moving with speed v.A force acts on the...

    Text Solution

    |

  18. A block of mass m is released from a height h from the top of a smooth...

    Text Solution

    |

  19. A particle of mass m initially at rest. A variabl force acts on the pa...

    Text Solution

    |

  20. A massive spring of mass m and length l is fixed at one end and the ot...

    Text Solution

    |