Home
Class 9
PHYSICS
A pair of bullocks exerts of work done o...

A pair of bullocks exerts of work done on an onject when a force of 1 N displaces it by 1m along the line of action of the force.

Text Solution

Verified by Experts

Here,` F = 140 N , s = 15 m`. Work done in ploughing the field, `W = F xx = (140 N) xx (15 cm) = 2100 J`
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    PRADEEP|Exercise Short Answer Questions|11 Videos

  • WORK AND ENERGY

    PRADEEP|Exercise Long Answer Questions|8 Videos

  • WORK AND ENERGY

    PRADEEP|Exercise III Quiz Testing|10 Videos

  • SOUND

    PRADEEP|Exercise Model Test (sec - B)|12 Videos

Similar Questions

Explore conceptually related problems

Calculate the amount of work done, when a force of 25 N displaces a body through 10 m, in its own its direction.

Work done by a force in displacing a body is an example of

Fill In the blanks: 1 __ is the amount of work done by a force of 1 N acting through a distance of 1 __ 'in the direction of the force ..

Work done by a force is zero when a body gets displaced along a direction ……….. to the direction of applied force .

How much work is done by a force of 10 N in moving an object through a distance of 1 m in the direction of the force ?

If the work done is zero, then the angle between the force and displacement is

A force of 5 N is acting on an object. The object is displaced through 2 m in the direction of the force (Fig. 11.2). If the force acts on the object all through the displacement, then work done is 5 N xx 2 m =10 N m or 10 J .

When is work done by a force zero ?

How much work is done when a force of 1 N moves a body through a distance of 1 m in its own direction ?

When is work done by a force negative ?

PRADEEP-WORK AND ENERGY-NCERT Questions
  1. Write an expression for the work done when a force is acting on an obj...

    Text Solution

    |

  2. Define 1 J of work.

    Text Solution

    |

  3. A pair of bullocks exerts of work done on an onject when a force of 1 ...

    Text Solution

    |

  4. What is the kinetic energy of an object ?

    Text Solution

    |

  5. Write an expression for kinetic energy of an object.

    Text Solution

    |

  6. The kinetic energy of an object of mass m moving with a velocity of 5 ...

    Text Solution

    |

  7. What is power ?

    Text Solution

    |

  8. Define 1 W of power.

    Text Solution

    |

  9. A lamp consumes 1000 J of electrical energy is 10 s. What is its power...

    Text Solution

    |

  10. Define avarage power.

    Text Solution

    |

  11. Look at the activites listed below. Reason out whether or not work is ...

    Text Solution

    |

  12. An object thrown at a certain angle to the ground moves in a curved pa...

    Text Solution

    |

  13. A battery lights a bulb. Describe the energy changes involved in the p...

    Text Solution

    |

  14. Certain force acting on a 20 kg mass changes its velocity from 5m//s t...

    Text Solution

    |

  15. A mass of 10 kg is at a point A on a table. It is moved to a point B. ...

    Text Solution

    |

  16. The potential energy of a freely falling object decreases progressivel...

    Text Solution

    |

  17. What are the verious energy transformations that occur when you are ri...

    Text Solution

    |

  18. Does the transfer of energy take palce when you push a huge rock with ...

    Text Solution

    |

  19. A certain household has consumed 250 units of energy during a month. H...

    Text Solution

    |

  20. An object of mass 40 kg is raised to a height of 5 m above the ground....

    Text Solution

    |