Mechanics of Materials: Lesson 37 - What the Heck is Q? Example Problem

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[@1234jhanson]

Thank you so much for the great note!

[@souvik.fingtore]

No doubt he is one of the most brilliant teacher in SOM today, I had been really struggling to understand this topic for so long and there are no proper explanations available on youtube for this topic

[@kaarthiknair7033]

Had a lot of confusion in the topic when my prof taught me this. All my queries have now been dispelled after watching your amazing lecture. This series has helped me a lot in mechanics of solids course. Thanks a ton!

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[@muhammadkhizeralikhan2590]

Brilliant. Such an abstract concept explained so clearly and with excellent examples and analogy!

[@MdAlvi-cw3bn]

You just totally solved all my problems and confusions about Q!!! Thank you very much!!

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Such great explanations and such a fun guy. You make learning both fun and exciting, thank you! 🙂

[@Personalaccount194]

This is exactly how i searched for in my brain before youtube. "What the heck is that Q" and then found this video lol

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Thank you Jeff! These videos have helped me so much studying for my final. You explain things clearly and concisely.

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Wonderful solids lessons!! really taking the time to explain the problems along with a good sense of humor :))

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Thank you so much for helping students like us

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Thank you sir. I really appreciate it!

[@ashar1122]

at 7:06 shouldn't it be 1250/12 instead of 1350/12? resulting in 104.167 instead of 112.5?

[@kangwachipili4487]

Its fine as it, because 1250000 + 100000 is equal to 1350000

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[@sindre6772]

At Qb isent there missing area from neutral axis down on the flange?

[@synthedits]

Thank you

[@anthonymaione8307]

Would q be zero if the neutral axis was considered the point of interest?

[@craig7878]

How the hell did he work out the distance between the top shape centroid to the neutral axis. I dont understand how it is 18.75

[@1234jhanson]

From the neutral axis of the whole part to the very top of the part was 37.5 mm. So the centroid of that area must be in the middle of the 37.5 which (divide by 2) is 18.75mm. Hope this helps

[@salahuddeenayyubi313]

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[@sevgipnar5261]

ı still cant understand when writing y from the Q of the upper part you write from the outer to centroid of the piece part. But when writing the bottom Q you write y from the centroid of the piece part to neutural axis . I dont get itttt where are we going the write y from ? Is my question clear, understandable ?

[@katiemaletta45]

If i understand your question, that is not what he did for the upper part. The y is always going to be the distance from the shape's centroid to the neutral axis, whether the point of interest is above or below the neutral axis.

[@sevgipnar5261]

@@katiemaletta45 ooh okay I understand now thank you !!

[@Made_by_profs]

@@sevgipnar5261 sevgi yani gerçek Q , QA olara hesapladığımız 140 olan değilmi

[@Made_by_profs]

gerek kalmadı sağol sevgi bende anladım.

[@sevgipnar5261]

@@Made_by_profs tamamdır bende şimdi açıklamaya çalışacaktım 😅

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What the heck is q is the most valid question ever asked

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Goated

[@KDYinYouTube]

Q is moment using area but not force to find because it is very hard to measure the force in real life but very easy to measure the area.