Please I need help with this controls system problem

12. (5 pts) Consider the laboratory experiment for which the position of a mass is controlled in a closed feedback loop by a PID controller. Using your hand, you displace the mass out of its equilibrium position and bring it to a new, out of equilibrium position, where you hold it steady. Describe the magnitude and variation over time of the opposing force that the controller imposes on your hand in cases for which the feedback is either purely proportional (P), purely integral (I) or purely differential (D). 12. (5 pts) Consider the laboratory experiment for which the position of a mass is controlled in a closed feedback loop by a PID controller. Using your hand, you displace the mass out of its equilibrium position and bring it to a new, out of equilibrium position, where you hold it steady. Describe the magnitude and variation over time of the opposing force that the controller imposes on your hand in cases for which the feedback is either purely proportional (P), purely integral (I) or purely differential (D)