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Pendulum making vertices cirlcles

Forums: Science, Math, Gravity, Physics, Pendulum
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thebeatles
 
Reply Wed 13 Aug, 2014 09:47 am
How do I mathematically prove that the maximum angle for a pendulum under gravity to oscillate is 90 degrees
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Type: Question • Score: 0 • Views: 1,273 • Replies: 2
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bobsal u1553115
 
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Reply Wed 13 Aug, 2014 04:07 pm
@thebeatles,
Start here: https://en.wikipedia.org/wiki/Pendulum_%28mathematics%29
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Brandon9000
 
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Reply Thu 14 Aug, 2014 05:26 am
Try doing a free body diagram of the pendulum at greater than 90 degrees. One thing that occurs to me is that the gravitational force on the mass will no longer have a component opposite to the tension in the cord.
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