Q $1.$ The system is given below: a$)$ What is the System's Natural frequency? b$)$ if the

initial velocity is $40\frac{m}{s}$ and the initial displacement is $0$ m $,$ what is the response of the

system? c$)$ what is the value of displacement in $2s?$

$E=210{10}^9\frac{N}{m^2}$

$I=1{10}^{-6}{m}^4$