1. A train at time to has initial position (to) = ro, and initial velocity of (to) = voy. At time to, it starts breaking, with its deceleration described by a(t) = -At, with A being a constant. a. What are the units of ro, vo, A? b. Find the time t, that it will take for the car to stop c. What is the displacement of the train from time to until ts? (You don't need to expand t, since you already found it prior) d. What will be the final position of the train at time ts?