A car starts from rest at a stop sign. It accelerates at 2.0 m/s2 for 6.0 seconds, coasts for
2.0 s, and then slows down at a rate of 1.5 m/s2 for the next stop sign. How far apart are
The stop signs?

I'm drawing the King of Wands and the Hanged Man, so my intuition tells me the signs are as far apart as you need them to be to find your way. Or perhaps were you looking for the topic "physics"? ;)