mass is connected to a rigid wall by a spring and a viscous damper. At time t = "0-", the spring is extended by 25 mm and the mass is moving left at 0.2 m/s. At time t = 0, a constant force of 17 Newtons is suddenly applied to the positive 'x" direction. Write an equation as a function of time for the mass's position for t > 0. Replace any parameters with their given values. You can cite and use any needed equation from the textbook (or lecture notes) without deriving it via Laplace transforms, or any ODE method