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A very flexible uniform chain of mass M ...

A very flexible uniform chain of mass M and length L is suspended vertically so that its lower and just touches the surface of a table. When the upper end of the chain is released it falls with each link coming to rest the instant it strikes the table. Find the force exerted by the chain on the table at the moment when y part of the chain has already rested on the table.

Text Solution

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The correct Answer is:
`(2Mg)/L y`
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