i just need part C please

(6.2) (a) Determine the steady-state position response, ra(t), of A when it is subjected to the constant (driving force: E() = 9 N. (b) Suppose that at the instant that the constant force in (a) is switched on-call this * = 08 - system A is at rest at the origin. Determine explicitly A's trajectory for t > 0. (c) Plot xalt) vs. t fort 10,100) s. Use gnuplot or equivalent.) Three DHO systems have the physical properties listed in the table below. DHO Mass [kg] Drag Coefficient (N/m] Spring Constant (N/m] A 9 B 1 1 81 81 9 1 81 9 (1) Commutul 1