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A block of mass 30.0 kg is being brought...

A block of mass 30.0 kg is being brought down by a chain. If the block acquires as speed of `40.0 (cm)/s` in dropping down 2.00 m ,find the work done by the chain during the process.

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To find the work done by the chain on the block, we will follow these steps: ### Step 1: Identify the given data - Mass of the block, \( m = 30.0 \, \text{kg} \) - Speed acquired by the block, \( v = 40.0 \, \text{cm/s} = 0.4 \, \text{m/s} \) (convert cm/s to m/s) - Height dropped, \( h = 2.00 \, \text{m} \) - Acceleration due to gravity, \( g = 9.8 \, \text{m/s}^2 \) ...
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HC VERMA ENGLISH-WORK AND ENERGY-Exercises
  1. In a factory it is desired to lift 2000 kg of metal through a distance...

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  2. A scooter company gives the following specifications about its product...

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

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

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

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

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

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

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

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

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

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

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  13. A uniform chain of mass m and length l overhangs a table with its two ...

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  14. A uniform chain of length L and mass M overhangs a horizontal table wi...

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  15. A block of mass m slides along a frictionless surfce as shown in the f...

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  16. A block of mass 5.0 kg is suspended from the end of a vertical spring ...

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  17. A block of mass 250g is kept on a vertical spring of spring constant 1...

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  18. Figure shows a spring fixed at the bottom end of an incline of inclina...

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  19. A block of mass m moving at a speed 'v' compresses as spring through a...

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  20. Consider the situation shown in figure. Initially the spring is unstre...

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