In the attachment below some form of link is made between F(x+xo) and dU/dx
I understand F=-dU/dx but I do not understand the derivation shown to prove that the force constant is equal to the second derivative in the last line.
How do they go about this proof ?
Attachment 57459
I understand F=-dU/dx but I do not understand the derivation shown to prove that the force constant is equal to the second derivative in the last line.
How do they go about this proof ?
Attachment 57459