A "rocket car" is launched along a long straight track at t = 0 s. It moves with constant acceleration a1 = 1.2m/s2 . At t = 2.4s , a second car is launched with constant accelerationa2 = 8.7m/s2 .
At what time does the second car catch up with the first one?
How far have the cars traveled when the second passes the first?