1J30.30 - Break a Wire With a Hinge
Set the apparatus up so that it has a small angle. You should be able to hang several kilograms of mass from the apparatus in this position. Then adjust the chain so that the apparatus has a larger angle and note that the chain will now break when the same amount of mass is hung from the apparatus.
- Julius Sumner Miller, "Physics Fun and Demonstrations", Central Scientific Company.
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