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how to get the formula of shear stress (tau) ? i got (dp/ds ydz/ds )(r/2) instead of d(p+yz)/ ds (r/2) as in the book , if it's d(p+yz)/ ds (r/2) m , i would get (dp/ds ydz/dsz(dy/ds) )(r/2) ,, right ?
P/s : i'm concerned about the derivation part , so i didnt upload the complete version of the note
The Attempt at a Solution
P/s : i'm concerned about the derivation part , so i didnt upload the complete version of the note
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