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Father_Ing
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- Homework Statement
- A chain with length L lies straight on a frictionless horizontal surface. You grab one end and pull it back along itself in a parallel manner (see Fig. 5.27). Assume that you pull it at constant velocity v.
- Relevant Equations
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In the book, it is stated that if your hand move a distance x, then x/2 is the length of the moving part of the chain because the chain gets “doubled up.” as in the image below.
I don't get the meaning of this. For example, if our hand move L metres from initial position, shouldn't the moving part is not half of it, but instead, it is still L (the same as how rope and pulley system works)?
Can anyone please explain to me about this matter?
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