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Jul 18, 2017 at 16:59 history edited ERK CC BY-SA 3.0
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Jul 18, 2017 at 15:53 comment added ERK Regardless of what method you use, you'd need to know the coefficient. I've edited my answer to reflect where I think your misunderstanding with the method you attempted is coming from. The most accurate and recommended way of finding the coefficient would be by a careful, controlled experiment since no two surfaces (and therefore coefficients) are exactly alike. However, looking up values will provide a reasonable degree of accuracy depending on your needs.
Jul 18, 2017 at 15:52 history edited ERK CC BY-SA 3.0
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Jul 18, 2017 at 15:16 comment added Hendricks This is very well explained. Straight to the point. Thanks! Correct me if I'm wrong: when going through the sum of torques instead, the only way to calculate the required torque is to know the static friction coefficient, right? I would have to determine the coefficient through experimentation or look up tables and find the situation that I want. Which path do you think (sum of forces or sum of torques) would then yield more accurate results?
Jul 18, 2017 at 14:56 history edited ERK CC BY-SA 3.0
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Jul 18, 2017 at 13:20 history edited ERK CC BY-SA 3.0
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Jul 18, 2017 at 13:10 history edited ERK CC BY-SA 3.0
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Jul 18, 2017 at 13:03 history answered ERK CC BY-SA 3.0