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What is the maximum distance that the edge of the top book can get from the edge of the table without falling over?

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Sajal has an infinite number of identical books that are rigid and perfectly rectangular. He places them all in a stack on the edge of a table.

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What is the maximum distance (parallel to the ground) that the edge of the top book can get from the edge of the table without falling over?

a) Equal to half the length of a book
b) Equal to the length of a book
c) As far as he wants

posted Aug 4, 2017 by anonymous

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