The distance and uniform acceleration

A car and a train move together along straight, parallel paths with the same constant cruising speed of $25 \text{ m/s.}$ Initially they are side-by-side. Suddenly, the car driver notices a red light ahead and slows down with constant acceleration of $-5.0 \text{ m/s}^2$ until it stops. The car remains stopped for $15 \text{ seconds.}$ The light turns green, and the car begins to speed up with a constant acceleration of $+5.0 \text{ m/s}^2$ until it reaches its original speed of $25 \text{ m/s.}$ During the same time interval, the train continues to travel at the constant speed $25 \text{ m/s.}$ How far behind the train is the car after it has reached its original speed again?