Home
Class 9
PHYSICS
A body of mass 100 kg is lifted up by 10...

A body of mass 100 kg is lifted up by 10 m. Find :
(i) the amount of work done.
(ii) potential energy of the body at that height (value of `g = 10 m//s^(2)`).

Text Solution

Verified by Experts

The correct Answer is:
(i) 10,000 J (ii) 10,000 J
NA
Promotional Banner

Topper's Solved these Questions

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Long Answer Type Questions|2 Videos

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Questions|1 Videos

  • WORK AND ENERGY

    LAKHMIR SINGH & MANJIT KAUR|Exercise Multiple Choice Questions|1 Videos

  • SOUND

    LAKHMIR SINGH & MANJIT KAUR|Exercise Value Based Questions|20 Videos

Similar Questions

Explore conceptually related problems

A body of mass 1 kg is lifted through a height of 1m, then its work done is

A load of 100 kg is pulled up by 5 m. Calculate the work done. ( g = 9.8 m//s^(2) )

A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate the amount of work done by him. How much potential energy does he gain ? ( g = 9.8 m//s^(2) ).

A body of mass 5 kg is moved up over 10 m along the line of greatest slope of a smooth inclined plane of inclination 30^@ with the horizontal. If g = 10 m//s^(2) , the work done will be

A body of mass 4kg, is taken from a height of 5 m to a hegiht 10m. Find increase in potential energy.

A body of mass 2 kg is thrown vertically upwards with an initial velocity of 20 m/s. What will be its potential energy at the end of 2 s ? (Assume g = 10 m//s^(2) ).

A body of mass 2kg is projected vertically upwards with a speed of 3m//s . The maximum gravitational potential energy of the body is :

An object of mass 1 kg has a potential energy of 1 J relative to the ground, when it is at a height of [g = 10 m//s^(2)]

A body of mass m is lifted up from the surface of earth to a height three times the radius of the earth R . The change in potential energy of the body is

LAKHMIR SINGH & MANJIT KAUR-WORK AND ENERGY-Exercise
  1. A man drops a 10 kg rock from the top of a 5 m ladder. What is its spe...

    Text Solution

    |

  2. Calculate the work done by the brakes of a car of mass 1000 kg when it...

    Text Solution

    |

  3. A body of mass 100 kg is lifted up by 10 m. Find : (i) the amount of...

    Text Solution

    |

  4. A boy weighing 50 kg climbs up a vertical height of 100 m. Calculate t...

    Text Solution

    |

  5. What is the work done by a constant force ? When is it positive, negat...

    Text Solution

    |

  6. To what height should a box of mass 150 kg be lifted, so that its pote...

    Text Solution

    |

  7. A body of mass 2 kg is thrown vertically upwards with an initial veloc...

    Text Solution

    |

  8. How much work is done when a force of 1 N moves a body through a dista...

    Text Solution

    |

  9. A car is being driven by a force of 2.5 xx 10^(10) N. Travelling at a...

    Text Solution

    |

  10. Explain by a an example that a body may possess energy when it is not ...

    Text Solution

    |

  11. (a) On what factors does the gravitational potential energy of a body ...

    Text Solution

    |

  12. Give two examples where a body possesses both , kinetic energy as well...

    Text Solution

    |

  13. How much is the mass of a man if he has to do 2500 joules of work in c...

    Text Solution

    |

  14. If the work done by a force in moving an object through a distance of ...

    Text Solution

    |

  15. A boy weighing 40 kg makes a high jump of 1.5 m. (i) What is his kin...

    Text Solution

    |

  16. What type of energy is possessed : (a) by the stretched rubber strin...

    Text Solution

    |

  17. A weightlifter is lifting weights of mass 200 kg up to a height of 2 m...

    Text Solution

    |

  18. (a) Define the term 'work'. Write the formula for the work done on a b...

    Text Solution

    |

  19. (a) When do we say that work is done ? Write the formula for the work ...

    Text Solution

    |

  20. (a) What happens to the work done when the displacement of a body is a...

    Text Solution

    |