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Try pulling apart two interleaved notebooks and you’ll inevitably be defeated by huge frictional forces. We tried to pull a car using two interleaved notebooks. Go ahead and check out this video to witness the strength of the frictional force!!!

Have you ever heard that two phone books with the pages interleaved are impossible to pull apart? This might seem crazy, right? It is not that hard to slide a sheet of paper off the top of a stack of paper. How much friction can there really be between sheets of paper? In this experiment, you will use pads of sticky notes instead of phone books. How much weight can they support when you interleave the pages? Do you think you will be able to pull them apart by hand? The results might surprise you!

 

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