Superman is flying under Batman. Batman is standing at rest on the ground 600.0m horizontally from Superman and 200.0 m under him. Batman spots Superman tries to escape by flying vertically off the ground with a net acceleration of 87.0 m/s2 vertically upward. Superman instantly uses her hammer to match this acceleration exactly, 87.0 m/s2 vertically upward. If Superman initial speed was 134 m/s, how long will it take Superman reach Batman ? At what altitude do they clash