solve for time trip wiill take

Problem 4. The dwarf planet Sedna is at a distance D = 85 AU (Astronomical Units) from the Earth. You want to fly a space-ship to Sedna. Suppose you have a space-ship that is able to linearly accelerate in either a positive or a negative direction at exactly A = 0.238 m/s\". You plan a trip where you move with constant positive acceleration in a straight line toward Sedna, speeding up the whole time, and then, at precisely the half-way point, you turn the ship around and accelerate in the opposite direction e.g., with negative acceleration of the same magnitude so that you are now slowing down. By symmetry, if you reverse acceleration at the half-way point, you should arrive at your destination with zero velocity (right?). Note: in this problem we are completely ignoring the practical reality of how one might build a spaceship that can sustain constant acceleration for an arbitrary period of time. We are also ignoring the motion of the Earth and of Sedna during the trip. Part (a): How long will the trip take? Important: You must given a sym- bolic answer in terms of the given parameters (here a and D corresponding to the acceleration of the spaceship and the distance traveled to Sedna. your symbolic answer. Also give a numerical answer in terms of seconds. Be sure that the answer has an appropriate number of significant digits. your numerical answer. Also convert your answer in seconds to an answer in units that are most appropriate to actual length of the trip (days, years, etc.) Again box your answer. Show your work. Hint: you will need to convert from \"AU\" to meters