Two space shuttles belonging to two different countries made an appointment in space. Their engines are closed, and they go on their impulse directly to Mars. The space shuttles are separated by large springs. Orbiter 1, with a mass of 1.9 x 10⁴ kilogram, then at a velocity of 3.5 x 10³ km/h at 5.1^o from its original direction. Space Shuttle 2, whose mass is 1.7 x 10⁴ kilogram at a velocity of 3.4 x 10³ km/h at 5.9^o from its original direction (which is a straight line between two shuttles). Calculate the initial speed of the two space shuttles at the time they were connected to each other.