Partially derive with respect to y, the following:

(Py/6EI)(6Lx-3x^2-vy^2)

Question

Partially derive with respect to y, the following:

(Py/6EI)(6Lx-3x^2-vy^2)

anonymous · Answer

Can you retype the question

anonymous · Answer

it appears bit messy

anonymous · Answer

I can...one moment please.  I'll try to do it with the equation editor.

anonymous · Answer

thanks , I am not able to answer wht Py/6ei is ?

anonymous · Answer

$$\left( \frac{ \delta }{ \delta y } \right) \frac{ Py }{ 6EI }\left( 6Lx-3x ^{2} -vy ^{2}\right)$$

anonymous · Answer

I'm pretty sure you're to use the product rule and the Py/6EI will end up being 1 because of the y in the numerator.

anonymous · Answer

O yeah I am used to product rule, dont worry, I was wondering whether it is part of question, or is a question number

anonymous · Answer

The solution looks like:  $$\frac{ P }{ 6EI }\left( 6Lx-3x ^{2}-3vy ^{2} \right)$$

anonymous · Answer

I cannot seem to figure out ho to get the coefficient 3 for the last term.

anonymous · Answer

*how

anonymous · Answer

anyways here is your solution

P/6EI (6Lx-3x^2-3vy^2)+(Py/6EI)*(0-0-6vy)

anonymous · Answer

hope that helps

anonymous · Answer

I'm not sure how you got that @psi9epsilon.

anonymous · Answer

Could you please clarify?

anonymous · Answer

product rule

anonymous · Answer

if the book answer is different then pls check the question, I dont see any error in the solution, unless rearragement of terms has been done