Home
Class 12
PHYSICS
A 50kg man with 20 kg load on his head c...

A 50kg man with 20 kg load on his head climbs up 20 steps of 0.25 m height each. The work done in climbing is

A

5 J

B

350 J

C

1000 J

D

3540 J

Text Solution

Verified by Experts

The correct Answer is:
C
W=20`xx10xx20xx0.25`=1000 J
Promotional Banner

Topper's Solved these Questions

  • WORK, ENERGY AND POWER

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|16 Videos

  • WORK, ENERGY AND POWER

    PHYSICS WALLAH|Exercise NEET Past 5 Years Questions|16 Videos

  • WAVES

    PHYSICS WALLAH|Exercise NEET PAST 4 YEARS QUESTIONS |15 Videos

Similar Questions

Explore conceptually related problems

A man weighing 80 kg climbs a staircase carrying a 20 kg load. The staircase has 40 steps, each of 25 cm height. If he takes 20 seconds to climb, the work done is

A man weighing 60 kg climbs up a staircase carrying a load of 20 kg on his head. The stair case has 20 steps each of height 0.2 m. If he takes 10 s to climb find his power

A man carries a load on his head through a distance of 5 m. The maximum amount of work is done when he

A person of mass 50 kg climbs a tower of height 72 metre. The work done is [g = 9.8 m//s^(2)]

A person holds a bucket of weight 60N . He walks 7m along the horizontal path and then climbs up a vertical distance of 5m. The work done by the man is

A person holds a bucket of weight 60 N. He walks 7 m along the horizontal path and then climbs up a vertical distance of 5 m. The work done by the man is

A man weighing 60 kg climbs a staircase carrying a 20 kg load on his hand. The staircase has 20 steps and each step has a height of 20 cm. If he takes 20 second to climb, his power is :

PHYSICS WALLAH-WORK, ENERGY AND POWER-Level - 2
  1. If the unit of length and force be increased four times, then the unit...

    Text Solution

    |

  2. A rigid body moves a distance of 10m along a straight line under the a...

    Text Solution

    |

  3. A 50kg man with 20 kg load on his head climbs up 20 steps of 0.25 m he...

    Text Solution

    |

  4. A force acting on a particle varies with the displacement x as F=ax-bx...

    Text Solution

    |

  5. A position dependent force F=7-2x+3x^(2) acts on a small body of mass ...

    Text Solution

    |

  6. A block of mass m at rest is acted upon by a force F for a time t. The...

    Text Solution

    |

  7. A particle of mass 0.1 kg is subjected to a force which varies with di...

    Text Solution

    |

  8. If v,p and E denote velocity, lenear momentum and KE of the paritcle r...

    Text Solution

    |

  9. A motor boat is travelling with a speed of 3.0m / sec . If the force o...

    Text Solution

    |

  10. An engine develops 10 kW of power. How much time will it take to lift ...

    Text Solution

    |

  11. A uniform chain of length 2 m is kept on a table such that a length of...

    Text Solution

    |

  12. The potential energy of a particle in a force field is: U = (A)/(r^(...

    Text Solution

    |

  13. The potential energy of a particle varies with distance x as shown in ...

    Text Solution

    |

  14. The potential energy of a force filed vec(F) is given by U(x,y)=sin(x+...

    Text Solution

    |

  15. A body of mass m is moving in a circle of radius r with a constant spe...

    Text Solution

    |

  16. A block of mass m is suspended by a light thread from an elevator. The...

    Text Solution

    |

  17. A particle of mass 2 kg travels according to S=3t^3+2t Find the work d...

    Text Solution

    |

  18. Starting at rest , a 10kg object is acted upon by only one force as in...

    Text Solution

    |

  19. A block of mass 50 kg is projected horizontal on a rough horizontal fl...

    Text Solution

    |

  20. The graph between the resistive force F acting on a body and the dista...

    Text Solution

    |