Home
Class 9
PHYSICS
Show by giving an example that if force ...

Show by giving an example that if force acting in the body does not produce any displacement then the work done will be zero ?

Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

The work done by a force is given by the dot product of force vecF and displacement vecs . If the work done is zero, then:

Forces acting on a body are said to be balanced if

Can displacement of a body be zero?

A force of 7 N acts on an object. The displacement is, say 8 m in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work done in this case ?

For what value theta is work done zero?

A force of 7 N acts on an object. The displacement is, say 8m in the direction of the force. Let us take it that the force acts on the object through the displacement. What is the work alone in this case?

In case of negative work the angle between the force and displacement is

The angle between force and dispalcement is theta . For what value of theta is work done zero

MBD-WORK, ENERGY AND POWER-Example
  1. If the force acting on the object is not in the direction of motion th...

    Text Solution

    |

  2. What is work ? How can you calculate it ? Also give the unit of work.

    Text Solution

    |

  3. Show by giving an example that if force acting in the body does not pr...

    Text Solution

    |

  4. A stone tied to one end of string is moved in a circle. How much work ...

    Text Solution

    |

  5. What is power ? Write its SI unit also.

    Text Solution

    |

  6. Prove by an experiment that mechanical energy can be transformed into ...

    Text Solution

    |

  7. Differentiate between Potential Energy and Kinetic Energy.

    Text Solution

    |

  8. A horse and a dog are running with the same velocity- If the mass of h...

    Text Solution

    |

  9. Two masses m and 2m are dropped from height h and 2h. On reaching the ...

    Text Solution

    |

  10. Two objects having same mass 'm' are moving with velocities v and 2v. ...

    Text Solution

    |

  11. A man drops a 10 kg rock from the top of a 20 m ladder. What will be i...

    Text Solution

    |

  12. A rocket of 3 xx10^6 kg mass takes off from a launching pad and acquir...

    Text Solution

    |

  13. An electric heater of 1000W is used for 2 hours a day. What is the cos...

    Text Solution

    |

  14. The power of a motor pump is 5 kW. How much water per minute the pump ...

    Text Solution

    |

  15. Calculate the electricity bill amount for the month of November of a f...

    Text Solution

    |

  16. A person carrying 10 bricks each of mass 2.5 kg. on his head moves to ...

    Text Solution

    |

  17. A car of 1000 kg moving with a velocity of 30 m//s stops with uniform ...

    Text Solution

    |

  18. A car is moving with a speed of 54 km//h. What will be the kinetic ene...

    Text Solution

    |

  19. 1 Joule of energy is used for one heart beat. Calculate the power of t...

    Text Solution

    |

  20. State the relation between commercial unit of energy and joules.

    Text Solution

    |