Home
Class 9
PHYSICS
Solve the following examples: Ravi appl...

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?

Promotional Banner

Topper's Solved these Questions

  • STUDY OF SOUND

    TARGET PUBLICATION|Exercise EXERCISE|94 Videos

Similar Questions

Explore conceptually related problems

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?

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

Solve the following example : A force of 1000N is applied over an area's 50cm xx 20cm Find the corresponding pressure.

Megha applied a force of 50 N to move a stool from one comer of a 10 m long room to other. Calculate the work done by Megha.

Solve the following problems : A force of 1000 N is applied over an area 50cm x 20cm . What is the pressure acting on the area ?

Solve the following examples: Ajit carries a load of 17 kg from the ground to the height of 2 m from the ground. Calculate the work done by him.

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.

If the displacement is not in the direction of the applied force, how do we calculate the amount of work done?

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.

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.

TARGET PUBLICATION-WORK AND ENERGY-EXERCISE
  1. Questions based on paragraph Study the following activity and answer ...

    Text Solution

    |

  2. Questions based on paragraph Study the following activity and answer ...

    Text Solution

    |

  3. Solve the following examples: Ravi applied a force of 10 N and moved ...

    Text Solution

    |

  4. Calculate the work done to take an object of mass 20 kg to a height of...

    Text Solution

    |

  5. Answer the following questions: Determine the amount of work done wh...

    Text Solution

    |

  6. Pravin has applied a force of 100 N on an object, at an angle of 60^@ ...

    Text Solution

    |

  7. A stone having a mass of 250 gm is falling from a height. How much kin...

    Text Solution

    |

  8. Two bodies of same mass have their kinetic Ie energies in the ratio 9:...

    Text Solution

    |

  9. A train approaching a station reduces its speed from 180 km/hr to 90 k...

    Text Solution

    |

  10. The velocity of a car increases from 54 km/hr to 72 km/hr. How much is...

    Text Solution

    |

  11. 500 kg water isstored in the overhead tank of a 10 m high building.Cal...

    Text Solution

    |

  12. A man drops a 20 kg object from the top of a 10m high building . What ...

    Text Solution

    |

  13. An object of mass 2 kg is thrown downwards. What is the work done by h...

    Text Solution

    |

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

    Text Solution

    |

  15. If a body possesses 980 joules of P.E. and 20 joules of K.E., then wha...

    Text Solution

    |

  16. What is the power of an object which does 600 joules of work in 1 minu...

    Text Solution

    |

  17. Swaralee takes 40 s to carry & bag weighing 20 kg to a height of 5 m. ...

    Text Solution

    |

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

    Text Solution

    |

  19. A 25 W electric bulb is used for 10 hours every day. How much electric...

    Text Solution

    |

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

    Text Solution

    |