A car is standing 200 m behind a bus, which is also at rest. The two start moving at the same instant but with different forward accelerations. The bus has acceleration 2 m/s2 and the car has acceleration 4 m/s2. After how much time will the car catch up with the bus?
(1) 110 s
(2) 120 s
(3) 102 s
(4) 15 s