The equations for the displacement y of the piston and car, for the pressure P in the cylinder, and for the flow rate Q m/s are as follows: +(5x10-5)P = 0 y(0-) = 0 m y(0-) = 24 m/s (10 - y)P = (2x108)(0.05y-Q) P(0-) = 0 N/m2 Q = (8.9x10-) /IP sign(P) In the equation for Q, sign(P)' is a programming command that produces +1 if P>0 and - 1 if P0 and - 1 if P