does plywood follow hooke's law? is the young's modulus for plywood constant across the beam? :) and if u have any other hints with deam deflection im willing to have them :P
thanks!!

mgb_phys
Homework Helper
Most things follow Hooke's law for small enough deflections - it depends how far you need to push it!
I would have thought that if there were enough layers of lamination then the longtitudanal/transverse ones would cancel out to give a uniform sort of behaviour.

FredGarvin
As a caveat to what MGB wrote: Most materials will follow Hooke's Law. However, the form of the law that it follows may not be what you are thinking of. The most generally quoted form of Hooke's is for 1-D, linear, isotropic, homogeneous materials, i.e. $$\sigma =\epsilon E$$.