(Solved): Find the value of fundamental natural frequency (W) in the following equation. E = 69G Pa L= 20 ...

Find the value of fundamental natural frequency (W?) in the following equation. E = 69G Pa L= 20cm w? = — B?² Et² --> t=6.1cm 2T 12pL4 p=2700 4gm²³ In order to solve equation, find Bi, eigen frequency which is smallest absolute value from characteristic equation. from the following matrix. in gues equation (2). For initial use value between 0 and 2. for stopping criteria stop the iteration when €?0.01 Assume Bn =B? Equation 2 (osh (Bn) Sinh (Bn) + Sin công [^]= [ Sinh (Bn) - Sin(Bn) Cosh (Bn) Given 1 = -cos (Bn)