[SOLVED] Cantilever Investigation 1.Hi, I am writing a report on cantilever oscillations, my experiment involves fixing different cantilvers e.g. a ruler to the end of a table then measuring the period and height of oscillations while varing the mass attached to the cantilever, and other varients e.g. lenght of cantilever. 2. I have found these two formulae: (Shown much more clearly in attachments) T= 2(pi)*[(4ML^3)/(bd^3E)]^1/2 and: h= 4MgL^3/Ebd^3 where: b= width of cantilever d= thickness of cantilever E= Youngs Modulus M=Mass L=Lenght of cantilever T=period of oscillations h=height of oscillation 3. I have looked at eqn's involving Hooke's and simple harmonic motion but cannot work out how these formulae have been derived. Does anyone know how these formulae where derived, or where I can find information on this in general? Thanks. ash. p.s. I have written out the formulae using math open office and attached them in pdf if it helps make them easier to read.