Home
Class 12
PHYSICS
Calculate work done in raising a stone o...

Calculate work done in raising a stone of mass 5 kg, specific gravity 3, lying at the bed of a lake through a height of 5 metre.

A

163.32 J

B

165.32J

C

167.2J

D

187.2J

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WAVES

    MBD PUBLICATION|Exercise QUESTION BANK|295 Videos

Similar Questions

Explore conceptually related problems

What is the work done in dragging a stone of mass 100kg up an inclined plane 1 in 100 through a distance of 10 m?

Calculate work done in rotating a bar magnet of magnetic moment 5Am^@ when rotated through an angle of 180^@ from its rest position parallel to an external magnetic field of 0.4 T.

Equal volumes of mercury and glass have the same heat capacity . Calculate the specify heat of a glass piece of specific gravity 2.5 , if the specific heat of mercury is 0.0333 and its specific gravity is 13.6 .

The mass of a spherical planet is 5 times the mass of the earth but it’s diametre is the same as that of the earth, how much work is done in lifting a stone of mass 3 kg through a distance of lm on the planet.

What is the work done in lifting water from a well 6 m deep using a bucket of mass 0.5 Kg and volume 2.5 liters?

Calculate the number of molecules in one cc of a perfect gas at 27^@C and at a pressure of 15 mm of mercury. Take mean KE of a molecule at 27^@C as 5xx10^(-11) J and density of mercury = 13600 kg/m^3 and g= 9.8 m/s^2 .

Calculate the kinetic energy of a body of mass 1kg moving in a circular path of radius 0.5m when the centripetal force is 1/r^3 .

State and explain Faradays laws of electrolysis ? A solution of Ni (NO_3)_2 is electrolysed between platinum electrodes using a current of 5,0 ampere for 30 minutes . Calculate the mass of nickel produced at the cathode at mass of Ni = 58.7 )

A charge of +1C is placed at the centre of a spherical shell of radius 10cm. What will be the work done in moving a charge of +1muC on its surface through a distance of 5cm?

MBD PUBLICATION-WORK, ENERGY AND POWER-QUESTION BANK
  1. In a ice rink, a skator moving with a velocity 3 m/s encounters a roug...

    Text Solution

    |

  2. What work is performed in dragging a sledge horizontal 15 metre by a f...

    Text Solution

    |

  3. Calculate work done in raising a stone of mass 5 kg, specific gravity ...

    Text Solution

    |

  4. A man weighing 60kg goes up a staircase 5 m high in 20 sec. Calculate...

    Text Solution

    |

  5. Calculate the power developed by mass weighing 70 kg in climbing up a ...

    Text Solution

    |

  6. A body moving along a circular path with uniform speed covers a distan...

    Text Solution

    |

  7. What would be the power of an engine required to lift 90 metric tonnes...

    Text Solution

    |

  8. A motor car weighing 1000 kg moves up an incline rising 1 in 49 at the...

    Text Solution

    |

  9. A body having a mass 100 gm is allowed to fall freely under gravity. C...

    Text Solution

    |

  10. A man cycles up a hill whose slope is 1 in 25 at the rate 7.2 km/h. Th...

    Text Solution

    |

  11. Find the energy equivalent of the mass of an electron . Given mass of ...

    Text Solution

    |

  12. A well 20m deep and 3m in diameter contains water upto a depth of 14 m...

    Text Solution

    |

  13. A ball is dropped from a height of 9m on a fixed plane floor. What dis...

    Text Solution

    |

  14. A car of mass 750 kg has an engine which produces a constant power of ...

    Text Solution

    |

  15. A ball of mass 2 kg and another of mass 4 kg are dropped together from...

    Text Solution

    |

  16. Two masses of 1 gm and 9 gm are moving with equal kinetic energies. Wh...

    Text Solution

    |

  17. An electric pump is used to full an overhead tank of capacity 9m^3 kep...

    Text Solution

    |

  18. A bullet when fired at a target has its velocity decreased to 50% afte...

    Text Solution

    |

  19. What is the work done in lifting water from a well 6 m deep using a bu...

    Text Solution

    |

  20. What is the work done in dragging a stone of mass 100kg up an inclined...

    Text Solution

    |