Problem $7$: $($Show the simulink model$)$

The following model describes a mass supported by a nonlinear, hardening spring:

$5y^{}=5g-(900y+1700y^3),y(0)=0\mathrm{.}5,y^{}(0)=0$

Create a Simulink model to obtain the numerical solution. Plot the solution for $0t2sec.$