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A person is climbing a ladder with a sui...

A person is climbing a ladder with a suitcase on his head. Then the work done by that person on that suitcase is

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The correct Answer is:
A

`m=6, h=2m`
`P.E. at a height, h=mgh`
`=6xx(9.8)xx2`
`=117.6J`
P.E. at floor =0
Loss in P.E. `=117.6-0`
`=117.6J~~118J`
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HC VERMA-WORK AND ENERGY-Exercises
  1. A 250 g block slides on aeroug horizontal table. Find the work donen b...

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  2. Water falling from a 50 m high fall is to be used for generating elect...

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  3. A person is climbing a ladder with a suitcase on his head. Then the wo...

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  4. A projectile is fired form the top of a 40 m high cliff with an initia...

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  5. The 200 m free style women's swimming gold medal at Seol Olympic 1988 ...

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  6. The US athlete Florence Griffith oyner won the 100 m spring gold medal...

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  7. A water pump lifts water from a level 10 m below the ground. Water is ...

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  8. An unruly demonstrator lifts a stone of mass 200 g from the ground and...

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  9. In a factory it is desired to lift 2000 kg of metal through a distance...

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  10. Express each of the following numbers as a product of its prime factor...

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  11. A block of mass 30.0 kg is being brought down by a chain. If the block...

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  12. The heavier block in an atwood machine has a mass twice that of the li...

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  13. The two blocks in an Atwood machine have masses 2.0 kg and 3.0 kg. Fin...

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  14. Consider the situatioin shown in figure. The system is released from r...

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  15. A block of mass 100g is moved with a speed of 5.0 m/s at the highest p...

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  16. A car weighing 1400 kg is moving at speed of 54 km/h up a hill when t...

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  17. small block of mass 200 g is kept at the top of a frictionless incline...

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  18. In a children's park, there si a slide which has a total length of 10 ...

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  19. Figure shows a particle slideing on a frictionles track which terminat...

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  20. A block weighing 10 N tavels down a smooth curved track AB joined to a...

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