7. A car moves along a straight track. The car starts at the origin and has an initial velocity of 2 m/sec. The car's acceleration is aft) = -6 m/sec. where t is the time in seconds and > 0 (a) [12 pts) Determine the position of the car at time t where t > 0. rob le compte (b) (3 pts) What is the car's position after a very long time?