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1. Minimum or maximum?
2. Fast or slow?
3. Force diagrams or generalized coordinates?
4. Are Trojans stable?
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Problem 0
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Problem No 1
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Problem No 10
Intermediate conclusion
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Problem No 2
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Problem No 3
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Problem No 4
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Problem No 5
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Problem No 6
Results after Problem 6
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Problem No 7
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Problem No 8
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Problem No 9
Results after Problem 9
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