PHYS 2002 Chapter : Mirrors

Determine the maximum deflection of the simply supported beam.

E=200 GPa, I=39.9x10⁶ m⁴

Show the derivation of X_com of a nonuniform wireif the mass per unit length λ is ax³ where a is aconstant with units kg/m⁴. The wire's total length is 12meters.

I know the answer is 9.6 m, but Ineed the derivation of x_com.

As always-- lifesaver, etc tobest answer.

Where does the equation for B come from (B=mg/iL)? I am confused as to where that came from because I do not see it in the book...