Home
Class 9
PHYSICS
When a force of 30 N acts on a body, the...

When a force of 30 N acts on a body, the body is displaced by 10 m in the direction inclined at `60^@` to the force. Find the work done by the force.

Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    NAVNEET PUBLICATION|Exercise EXERCISE|140 Videos
  • STUDY OF SOUND

    NAVNEET PUBLICATION|Exercise EXERCISE|111 Videos

Similar Questions

Explore conceptually related problems

Solve the following examples: When a force of 20 N acts on a body, the body is displaced by 5 m. If the angle between the force and displacement is 60° , find the work done by the force.

Solve the following examples: A force of 20 N acts on a body. If the displacement of the body is 0.6 m in the direction opposite to that of the force, calculate the work done by the force.

A force of 50 N acts on an object and displaces it by 2 m. If the force acts at an angle of 60° to the direction of its displacement, find the work done.

Raj applied a force of 20 N and moved a book 40 cm in the direction of the force. How much was the work done by Raj?

A force of 20 N acts on a body at rest. What will be its momentum after 10 seconds?

Calculate the work done when a force of 60 N displaces a body through 10 m in the direction of the force.

Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi ?

Work is always done on a body when

A force F = (2 + x) acts on a particle in x-direction, where F is in newton and x is in metre. Find the work done by this force during a displacement from x = 1m to x = 2m

Solve the following examples: Ravi applied a force of 10 N and moved a book 30 cm in the direction of the force. How much was the work done by Ravi?

NAVNEET PUBLICATION-WORK AND ENERGY-EXERCISE
  1. Solve the following examples: If the energy required to move a body ...

    Text Solution

    |

  2. Solve the following examples: If the energy of a ball falling from a ...

    Text Solution

    |

  3. Solve the following examples: A body of mass 1 kg has kinetic energy ...

    Text Solution

    |

  4. Solve the following examples: The velocity of a car increases from 54...

    Text Solution

    |

  5. Solve the following examples: A man carrying a box of mass 20 kg clim...

    Text Solution

    |

  6. Solve the following examples: An electric pump has 2 kW power. How mu...

    Text Solution

    |

  7. Solve the following examples: If a 1200 W electric iron is used daily...

    Text Solution

    |

  8. Solve the following examples: Find the mass of water lifted by a pump...

    Text Solution

    |

  9. Solve the following examples: An electric bulb of 40 W is used for 25...

    Text Solution

    |

  10. Calculate the work done when a force of 60 N displaces a body through ...

    Text Solution

    |

  11. When a force of 30 N acts on a body, the body is displaced by 10 m in ...

    Text Solution

    |

  12. A body of mass 5 kg is lifted through a height of 20 m. Calculate the ...

    Text Solution

    |

  13. If the energy of a ball falling from a height of 20 m is reduced by 60...

    Text Solution

    |

  14. A body of mass 2 kg moves with a velocity of 5 m/s. Find its kinetic e...

    Text Solution

    |

  15. The speed of a body of mass 4 kg increases from 2m//s to 4 m//s in cer...

    Text Solution

    |

  16. Calculate the potential energy of a body of mass 5 kg at a height of 2...

    Text Solution

    |

  17. A box of mass 10 kg is lifted through a height of 10 m in 49 s. Find t...

    Text Solution

    |

  18. Find the mass of water lifted by a pump of power 0.5 hp to a height of...

    Text Solution

    |

  19. A pump lifts 373 kg of water to a height of 10m in 98s. Find the power...

    Text Solution

    |

  20. An electric bulb of 40 W is used for 50 days at 5 hours per day. Find ...

    Text Solution

    |