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Centripetal force



blog-0718013001422039462.jpgOne day I took my little cousin to the zoo and while we were in the monkey house getting out of the snow he saw the big yellow circle and wanted to throw a coin in it to see what it did. While it spun around all I could think about was physics class and how we learned about centripetal acceleration. When we first dropped the coin it went slowly around in a circle and then it kept speeding up as the radius got smaller. This proves the equation of v^2/r to be very accurate because by the time the coin was about to fall in to the dark center it was moving so fast you couldn't even tell what shape it was. From this experience the idea of centripetal acceleration was put into real life for me.


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