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    Laws of Motion: Variable force.

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    A table of height 1 meter has a hole in the middle of its surface. A thin, gold chain necklace, of length 1 meter, is placed loosely coiled close to the hole. One end of the chain is pulled a little way through the hole and then released. Friction is negligible, and, as a result, the chain runs smoothly through the hole with increasing speed. At what times will the two ends of the chain reach the floor?

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    Solution Summary

    A chain slides from a hole in a smooth table. The times to reach the ends of chain at ground are calculated.