In a chamber moving with acceleration a= 3 (m/s²) on a horizontal frictionless plane, two disks are thrown towards each other simultaneously on the ground with velocities vz=0.4 (m/s) and vz=0.8 (m/s). The velocities of the discs are relative to the room and the room floor is frictionless. After how many seconds do the two balls meet? 4 (m)
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