Please solve the tasks in MATLAB. Please write ready code and add some comments

2. Equip the harmonic oscillator with a damper, which generates the friction force proportional to the movement velocity Ff=cdtdx, where c is called the viscous damping coefficient. Repeat the simulations. Analyze the system behavior for different values of the system damping ratio =2mkc ( larger than, equal to, or smaller than 1.) 3. Consider a driven harmonic oscillator with a damper, affected by an externally applied force F(t). - Analyze the step response of the system. - Apply a sinusoidal driving force F(t)=F0sin(t), where F0 is the driving amplitude and is the driving frequency. Analyze the system behavior for different values of the driving frequency ( larger than, equal to, or smaller than 0=mk.) 4. For the double pendulum model (m1+m2)l11+m2l22cos(12)+m2l222sin(12)+g(m1+m2)sin1=0m2l22+m2l11cos(12)m2l112sin(12)+m2gsin2=0 run the simulation with different initial conditions. Visualize the obtained results. Repeat the simulations for different system parameters. 5* Extend the double pendulum model with an additional link. Derive the model and perform the simulations