Home
Class 12
PHYSICS
A person holds on a weight of 10 kg. at ...

A person holds on a weight of 10 kg. at a height of 5m. Above the ground for 5 minutes. Work done by him is

A

zero

B

250J

C

50J

D

300J

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MODEL QUESTION PAPER 1

    SARAS PUBLICATION|Exercise EXERCISE|43 Videos

  • MODEL QUESTION PAPER 4

    SARAS PUBLICATION|Exercise EXERCISE|42 Videos

Similar Questions

Explore conceptually related problems

An object of mass 2 kg falls from a height of 5 m to the ground. What is the work done by the gravitational force on the object? (Neglect air resistance, Take g = 10 ms^(-2) ).

A gardener pushes a lawn roller through a distance of 20m. If he applies a force of 20 kg wt in a direction inclined at 60^(@) to the grounds, find the work done by him. Take g=9.8ms^(-2) .

A car weighing 1400 kg is moving at speed of 54 km/h up a hill when the motor stops. If it is just able to read the destination which is at a height of 10 m above the point calculte the work done against friction (negative of the work done by the friction).

A boy standing at point O finds his kite flying at a point P with distance OP = 25m. It is at a height of 5m from the ground . When the thread is extended by 10 m from P, it reaches a point Q. What will be the height QN of the kite from the ground? (use trigonometric ratios)

SARAS PUBLICATION-MODEL QUESTION PAPER 2-EXERCISE
  1. The ratio of charge to potential of a body is called as :

    Text Solution

    |

  2. What is the dimensional formula for impluse

    Text Solution

    |

  3. A person holds on a weight of 10 kg. at a height of 5m. Above the grou...

    Text Solution

    |

  4. A disc is rotating with angular velocity (vecomega).A force vecF acts ...

    Text Solution

    |

  5. The ratio of kinetic energy of two bodies of moment of inertia 9 kgm^2...

    Text Solution

    |

  6. The gravitational potential at a point due to a point mass is V=

    Text Solution

    |

  7. The mass of the earth is 6xx10^(24) kg and that of the Moon is7.4 xx10...

    Text Solution

    |

  8. Two liquidsAand B are at 32^@C and 24^@C, when mixed in equal masses t...

    Text Solution

    |

  9. The young’s modulus of steel is 2 xx 10^11 N//m^2 and its coefficient ...

    Text Solution

    |

  10. A carnot engine operates between 227^@C and 127^@C. If it absorbs 60 x...

    Text Solution

    |

  11. The speed of sound in a gas is V. The rms speed of molecules of this g...

    Text Solution

    |

  12. A body oscillates with SHM according to the equation, X=(5.0m)cos[2pit...

    Text Solution

    |

  13. Calculate the velocity of sound in air:

    Text Solution

    |

  14. Intensity of an electric field E due to a dipole, depends on distance ...

    Text Solution

    |

  15. The potential at a certain point in an electric field is 200 V. The wo...

    Text Solution

    |

  16. If in the circuit, power dissipation is 150 W, then R is…

    Text Solution

    |

  17. A coil of inductance 300 mH and resistance 2Omega is connected to a so...

    Text Solution

    |

  18. The direction of lines of force of magnetic field produced by passing ...

    Text Solution

    |

  19. A long solenoid has 200 turns per cm. and carries a current of 2.5 amp...

    Text Solution

    |

  20. In an oscillating LC circuits the maximum charge on the capacitors is ...

    Text Solution

    |