Two spaceships are traveling, one in front of the other, in the same direction, at the same speed of 1.46 108 m/s relative to the earth. A laser pulse is emitted by one of the ships and is reflected back by a mirror on the other ship. The total round trip time for the laser pulse is 4.12 10-3 s. How long would it take for a small landing module to travel between the ships if its speed, relative to the ships, is 1.11 103 m/s?(answer in min please)