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Analysis of the Ground Function: f(x) with $$f''(\bar{x})=0$$
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[QUOTE="TSny, post: 6853990, member: 229090"] You have an interesting approach! I get the same result by using the standard method of finding the point where the normal force vanishes; except the nature of the inequality in your last inequality should be >. Think about the sign of ##f''(x)## once you're past the inflection point of ##f(x)##. What happens to the nature of the inequality when you divide both sides by ##f''(x)##? [/QUOTE]
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Analysis of the Ground Function: f(x) with $$f''(\bar{x})=0$$
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